Judges: Great Britain, Netherlands, Slovakia, Ukraine, Yugoslavia
Reserve Judge: France
Theme:
Single-phase 2-movers with a blend of at least three different thematic groups of two or more variations, i.e. at least 6 variations altogether. Two of the thematic groups may show the same theme but must be clearly recognisable as separate systems. There should be different mates in all thematic variations, and none of the thematic variations should appear in more than one thematic group.
Question 1:
The definition goes: "Single-phase 2-movers......"
If a problem has a set play or a try with play of which the content is
different from the thematic play in the solution, will that problem be
disqualified? That should mean: every problem with setplay and/or tries will be
cancelled.
Answer:
The definition states the MINIMUM requirement for a problem to be thematic.
Therefore, as long as the problem satisfies this minimum requirement it is
thematic. Additional contents by itself (including set, try, etc.) cannot
disqualify the problem. It is the judges' duty to decide whether this
additional content does or does not add value to the problem.
Question 2:
1.Does the selfpinning (in
this posiition) correspond with thematic identicity?
W:Kg6,Tg5,Th1,Lf6,pp.f2,h3 B:Kh4,Dh2,Lh8,Sg3
1.- Dh3: - selfpinning by the Q is pinned by the herself1.- Kh3: - the Q is
pinned by the K
2.Does the unpinning
correspond with its indencity in the following two-variations?
W:Kc1,Sd2,Se1 B: Ka1,Lh6,Sh2,pa2
1.- Lf8 2.Sb3# - direct unpin
1.- Sf2 2.Sc2 - indirect unpin
3.Are the selfblocks
identical with the two-variations system of themein the position?
W: Kg5,Td1,La7,Sc3 B:Ke5,Td8,Sf8,Pe6
1.- Td6 2.Te1# - simple blocking
1.- Sd6 2.Ld4 - compound blocking
4.Does the following type of
blocks correespond with the same thematic
group of the 7 WCCT theme?
W:Ke7,Th4,Lh3,Pc4,Pf2,Pg3 B:Ke5,Te1,Lb1,Pd4
1.- Te4 2.Th5 - simple self-block
1.- Le4 2.f4# - compound selfblock
Answer: In principle, all 4 cases are acceptable as showing thematic pairs belonging to the same thematic group. However, this is the composer's choice. For example, the composer can legitimately show direct pinning and indirect pinning (a) as belonging to the same thematic group or (b) as belonging to two separate thematic groups. Both choices are allowed.
Question 3:
The definition goes "Two of the
thematic groups may show the same theme but be clearly recognizable as separate
systems." But if a problem has 4 systems, may 3 of them show the same
theme recognizable as different systems (for example black correction of
different pieces)? Will all four systems be accepted as thematic?
Answer: Three thematic groups showing the same theme are not thematic irrespective of the overall number of systems. In the hypothetical case described by the question only two of the three systems showing the same theme (in addition to the system showing a different theme) may be regarded as thematic.
Question 4:
It is this: Must the variations yield
only single White mates, or are dual/triple etc. combinations of mates also
permitted?
Answer: Multiple combinations of mates that make sense as a thematic system are permitted.
Question 5:
If dual/triple etc. combinations of mates
are permitted after one or more variations within a thematic group, may the
same mate appear within the same thematic group, differently combined with
other mates; for example in a threefold variation group comprising: after 1...x
2. mates AB, after 1...y 2. mates BC, after 1...z 2.mates AC?
Answer: Yes, this kind of combination is allowed.
Question 6:
All examples present black thematical
motives. Does it mean that "white themes" (Albino, white promotions,
mates by pinned piece, etc) should be treated as less thematical, or
non-thematical?
Answer: The so called "white themes" (as characterized by the question) are thematic and should be treated in the same manner as "black themes" are treated
Question 7:
In the second move of a #2, is a
promotion of a pawn into Queen or Bishop is permitted? Example: White : Kg8,
Rf5, pp. f6, h5 (4)- Black : Kh6, pd5 (2); #2 1.f7! d4 2.f8=Q# or 2.f8=B#
Answer: This kind of "dual" promotion is acceptable.
Question 8:
All examples present black thematical
motives. Does it mean that "white themes" (Albino, white promotions,
mates by pinned piece, etc) should be treated as less thematical, or
non-thematical?
Answer: The so called "white themes" (as characterized by the question) are thematic and should be treated in the same manner as "black themes" are treated.
Question 8:
Is the following scheme thematic?
1. Key (threat 2.A and 2.B) 1... a 2.A 1... b 2.B.
The Novotny is an example.
Answer: The above pair of variations is a legitimate thematic group.
A001 - 1.d4 (2.De5#),1.- Ld4:/Lf4/Lg5 - theme Low; Te4/Sd7 - Vienna theme; Td4:/Tg5 - theme distraction. 2.c4/Le4/Lg8; Le4/Dd7; Lg8/Le4#. 1.- Tg8+ 2.L:g8# .Theme Brede.
A002 - 1.h5! (2.Sh4#), Dc7/Dd6 - closing of white line (Defence), unpin of white(Error), battery mate by T with capture (Mate); D:d3/D:f5 - capture (Defence), unpin of white (Error), pinning battery mate by T (Mate); D:c6+/Dd4 - check (Defence), move to focal point (Error), capture (Mate) 2.T:c7/T:d6; Tc3/Tf6; L:c6/S:d4#.
A003 - 1.Sg4! (2.De3#), 1.- Ld3/Tc3:; Lh6/Db7,Da8; Lb7/Sd3 2.Df6 (A/X)/Dd5 (A/Y); Lc5 (B/Y)/Le5 (B/Z); Sb5 (C/Z)/Se2 (C/X)#. A= self-block;B= withdrawal of rear guard;C= shutting-off a black line+ direct guard withdrawal; X= shutting- off a white line for flight- giving; Y= direct quard; Z= pinning of white Queen. Two sets of thematic groups (ABC and XYZ) cyclicaly interwoven.
A004 - 1.Dh1! (2.Db1#), 1.- Se5/Sf4 - blocking; D:d5/Dc8: - capture and removal of control. Battery mate with control restoring; Df3/Dh3 - Direct defence of try line. Capturing of black piece 2.Sd6/Sc3; g3/g4; .g:f3/g:h3#. Complete Albino theme. (1.- Ld4 2.T:d4#)
A005 - Tries:1.L:a5? (2.Lb4#) Sc2!; 1.Lb8? (2.La7#) Sb5!- covering mating square;1.T:b3? (2.Lb6#) Sb5! -line closing,1.- Lb5 2.Se6#; 1.- Sc4 2.d4# - by interception. 1.Sf7! (2.Ld6#), 1.- Sb5/Sc4 2.Lb6/d4 -covering mating square and blocking.
A006 - 1.Kb5! (2.Tc4#)-check provoking + unpinning, A/ 1.- De2:+/De8+ - unpin+ cross-check; B/ 1.- Dd5/Lc3 - Indirect block-B2+double check mates; C/ 1.- Le3/Lc1: - Flight allowing defences + flight-control battery mates 2.Scd3/Sd7; Sc6/Sc2; Sbd3/Sd5# A+B+C = geometricaly analogue moves of BQ & BB (1.- Se4 2.Te4:# 1.- Dc5: 2.Lc5:#), 1.Db5? Lc1!, 1.Db3? Dd5!, 1.Ka6? Lb7!)
A007 - 1.Dh8 ( 2.Dh4#), Sf2/Sg3 - anticipatory interference; Tb4:/Lb4: - unpin; Td2:+/Le5:+ - chess 2.Sb3/Sc6; Se4/Sd3; Td2:/De5:#
A008 - 1.Se8! (2.Sd6#), Tc6/Tb5: - defenses by T anti-dual, mates by Queen; Ld-/Le4 unblocks by Bishop, black correction, mates by Queen; Df4-Dg3/Dh2 - defenses by Queen anti-dual, mates by Knight 2.Dd5:/Db5:/Dd3/Dd4/Sb2/Se3:#; 1.- Lc3/Lb4 2.T:c3/T5:b4#, interference by Bishop, captures by Rook.
A009 - 1.gh7:! (2.g6#), Lh4/Le3; e3/cd5:; Df6/Dh6; Dg5:/Dh7:; De5:/Dg6 2.Sd4/Sg3; Lc2/Ld7; gf6:/gh6; Dg5:/Dh7; Sh6/Dg4:#
A010 - 1.Te6! (2.Tf6#)-double flight giving key, 1.- Kf4:/Ke6:- selfpin; Sd5/Sg4- double line-opening + dual avoidance; Db6/Ta6 - black Ambush + unguard+double flight 2.Tf1/Dd5; Sh6 (Se7?)/Se7 (Sh6?); De4/Df7#
A011 - 1.Sc2! (2.S:e3#), 1.- T:a3/T:e2- elimination of white mass; Tb3/Tc3 - self-blocks; Td3/T:f3- creation of captures for the white pawn; Te4/Te5 - removal of blockades/Bristol; D:f3/Sc3 - renunciation of guard; Lb6/L:f4 - focal theme 2.S:a3/L:e2; Dd4/Db5; e:d3/e:f3; e3/e4; Tc5/Db4; Sd6/Sa5# Albino.
A012 - 1.Dc5! (2.Df5#), Dd5/Te5; Tf1/Lb1; Sd6/Se7 2.D:e3/D:c4; T:e3/L:c4; D:d6(Te7?)/ T:e7(Dd6?)#
A013 - 1.Lg2! (2.T:e4#), S:e5/T:e5 - Stocchi; L~/Lf5/L:c2 -black correction; Sc3/Sd2 - black interference + dual avoidance 2.D:b7/Dc4; Td3/Td5/S:c2; Tb4/Dc3#
A014 - 1.Tc7! (2.De4#), 1.- Te3/Le5/Sc3- self-block; Ld3/Sg3/g3- interference; Lb7/Dh7- direct defense 2.Dd5/Db6/Lc5; Sb3/Lb2/Sf3; Tc4/ Td8#
A015 - 1.Dd1! (2.Ld-#), 1.- Ta2/T:g2 - battery; Ta3/Th3 - battery; Ta1:/Th1 - baterry; b:c4/f:e4 self-block; S:c4/S:e4 self-block; K:c4/K:e4 - escape; c:d4/T:h7+ - add protection 2.Lb2/Lf2; Lc3/Le3; La1:/Lg1; Te5/T:c5; a8D/Lg8; Db3/Df3; D:d4/Lg7#
A016 - 1.Se5! (2.Sc4#), 1.- Sf5/f5/Dg5/Sg5 - Levman defences; Tc7/Td7 - closing of Queen's lines; Sc8:/De5: - capturing of white pieces 2.Dc6/De6/Sf7:/Dc5; Dc7:/Dd7; Td3/2.fe5#
A017 1.Tc1! (zz), 1.- Sb~/Sg~ - line openings; Sc4!/S:e5! - Mari theme after black correction; Kc4/K:e5 - BK moves 2.c4/D:d6; Sf4(Sc3?)/ Sc3(Sf4?); Lg8/Df5#; (1.- c4 2.D:d6#)
A018 - 1.d7 (2.De6#),1.- T:d4/L:d4; Sg7/Sf4; S:e7/S:b6 2.f4/Dg5; De5/De4; Td6/Dd6#
A019 - 1.Lb7! (2.T:c3#),1.- Kd3/Ke3/Kd5 - flights and dual avoidance; Lg4/L:e2 - guard removal; Sc5/T:c6/Td3 - battery obstruction 2.Td6/D:f3/Df5; Tc5/Te4; Td6/T:c6/Te6#.
A020 - 1.Dd7! ( 2.D:c6#), 1.- Te6; T:c7+/T:b6+/Ta6 - masked battery KxL; T:c5/Se5/Sd4 - self-block with white interference; Th:d6/Tcd6:/Dd6: - self-pin (Nietvelt) 2.D:e6# (- D:2T); K:c7/K:b6/K:a6; Sb6/Se7/c4; Sf6/Kb8/Sf4#
A021 - ** 1.- L:d5 2.D:d5#; 1.Ta5 (2.Dd4#),1.- Sb5,Td3 - self-blocks; Sc6,Se6 - black interferences; e3,Sf5 - black interferences + unguards; L:c3,T:c3 - self-pins 2.Ta4,Db4; Tc5,Dd5; d3,L:f7; Sb2,Se3#; (Te5? Sb5!; 1.Tb1? L:c3!)
A022 - 1.Sd7! (2.T:e5#),1.- K:e6/Ke4 - BK moves; d3/f4 - Black/White line openings; S~/Sc4: - Black correction 2.Tc6/D:f3; Td6/Sf6; Tc5/L:c4#
A023 - 1.b4! (2.Dd7#),1.- e6/Le6 - Pickabish; Tc6:/bc - direct guard; Tg6:/Lg6: - direct guard; Sab6/Sc5-dual avoidance 2.Dd3/D:f4; Sb5/Sc8:; Td8/Dc5; c5/bc#
A024 - 1.Se3! (2.D:f6#)1.- D:d5/D:a3 - dual avoidance; Td5:/Ta3: - dual avoidance; Sd5:/Se4 - dual avoidance; Sg6:/Te3: - direct guard 2.Sb3/Sc2; Lc5/Db6; Tg4/Te4:; Sf5/de#
A025 - 1.d:c4 (2.Sb3#),1.- b:c4/Lc4: - self-blocks + dual avoidance; S:c5/Tc5: - self-blocks+ dual avoidance; Te6/Le6- Grimshaw; Tg3/Se2: - unguard 2.Dd2(Db2?)/Db2(Dd2?); Sf5(Tg4?)/Tg4(Sf5?); Td5/Lf6; Te4/Sf3#.
A026 - 1.- Ke5,e5,ed 2.Dc3,Sgf5,Sef5#; 1.Sg4 (2.De4#),1.- K:d5,D:d5 - self-pin; ed,S:d5 - self-blocks; D:c6,De5 - opening of the W line with antiduals 2.De5,S:e6; Sf5,Tc4; Dg1(Dc3?),Dc3(Dg1?)# ; (1.Sc4? S:d5!)
A027 - 1.Kd7 (2.Ke8#),1.- Ta8/Th8/Lg6; Tc7:+/Te7:+; Dc8+/Le6:+/Dc6:+ 2.L:e5/Dd6/Td6; Kc7:/Ke7:; Kc8:/Ke6:/Kc6:#
A028 - 1.Sh4! (2.T:e5#),1.- Sd7/Sf7; Sg6:/Sg4:; Sf3/Sd3; Sc4/Sc6 2.e:d7/e:f7; Dg6:/Tg4:; ef3/ed3; Td4/Ld5#. BS-tour.
A029 - 1.Lf6! (2.Lf5-#), 1.- Th8/D:h2-battery; Tg8/Dg1-battery; Te8/De1-battery; Td8/Df1-battery; Tc8/ Dc1; Lc3/ Lb4 - black correction; ab6/Sc6-direct protection 2.Lh7/Lh3; Lg6/Lg4; Le6/Le4; Ld7/Ld3; L:c8/Lc2; L:c3/D:b4; D:b6/T:a6#
A030 - 1.c5! (2.Sc4#), 1.- Le3/Te3-Grimshaw; Ld7+/Sf6+-check; L:f5/T:f5 -Azerbaijan Novotny; S:b6/cb -direct guard; Le6/Te4/Tf4-direct guard 2.Te4/Dd4; S:d7/Lf6; Sf7/Sg4; L:c7/Dd6;T:e6/T:d5/D:f4#
A031 - 1.f:e5 (2.T:d6#), 1.- L:e5/Te5: - self-pins; Ld4/Td4 - Grimshaw; Sc6/Te6 - self-blocks; T:e3+/Tb4+ 2.Sc3/Lg8; Sb4/e6; Tb5/De4:; S:e3/Sb4:#
A032 - 1.Sb4! (2.Sd3#), 1.- b6+/b5+; Lb1/Se5; Kb4:/Tb4:/Sd6: 2.Td5/Tc6; Tc4:/Ta6:; Tb6/Se4/Df2#
A033 - 1.Kf7 (2.Th5#), 1.- T:g3/hg3;Td5:/cd5; Sg3:/Se3:; f2/gf5 2.Te5/e5(Te6?); Td5(ed5?)/ed5(Td5:?); Se5/Se3:; Dd1/Dg7#; 1.- g5 2.Tf6#
A034 - 1.Da6! (2.Td4#),1.- Sc6/Se6/fe5 self-block; Tg2/Sc2/Sf3 - interference; Lc5:/Ld6/Le4 2.Dc4/Db7/Sf6; e4/La2/e4; Tc5:/Dd6:/de:4#.
A035 - 1.Lf8! (2.Se7#),1.- T:c5/L:c5- selfpinning; S:c6/L:e4 - selfblocking; Dd4+/Tc4+ - crosschecks; g6/Tg6/Tf5 - closing white line 2.c4/Sb4; Lf7/Dg8; T:d4/b:c4; Sf6/Te5/D:f5#
A036 - 1.Dd6! (2.Dd4#), 1.- Sb5/Sc2 - interference + 2S & 2D; L:e3/Te3: - self-block + 2:e3 & 2S; Te5:/Tf4: - pin of black + 2T & 2T; Tf8/Th5 - critical black move and shutting down + 2T & 2T 2.Dc6/Dd3; Sc3/Sf2; Te6/Tg4; Tf6:/Tg5#
A037 - 1.Lf6! (2.Te5#),1.- g:f5/Lf5; Tc5/Tce3:; de3/Tee3: 2.De8/Df3; Ld3/Lc6; Sc3:/Sf2:#
A038 - 1.Kf7! (2.Te5#), 1.- Sc4/Sd3 - interference; De4/Lg4 - self block; Sf3/Sg4 - interference; Ld6/Lg7 - focal theme 2.Sd4/Se3; Tf6/Df6; Dh3/Dh5; Sh6:/Se7#
A039 - 1.Td4! (2.Td5#), Td6/Te6/Tf6- self-block; f2/Sf6,e3/Dd1,Db1: - battery mates; Sf5/Ld3/Lc4- capture of a piece which made a defenses move; Ta5/Tb5 - loss of the control of a field 2.Te4/Df4/Dd5; Te3/Tg5/Tgg4:; Df5:/Sd3:/Sc4:; De7/Sd7:#
A040 - 1.Lc7:! (2.Df5#), 1.- Dd4/Ld4 - Nietvelt; de6/Le4 - self block; Lf3+/Sf4+ - check; Dc7/bc3-unblock; Te2/Se7 - unguard 2.Tc5/Se3; Lc6/Dc4; Df3/Sf4; Sc7:/Sc3:; Lb3/Td6#
A041 - 1.Lb7 (2.Ke4#), 1.- T:a8/Td8; Tg3/Te3; Tf6:+/Tf4:+; De6:+/Dg6:+; Sb4/Ld4 2.Sd7 (Se4?)/Se4(Sd7?); De5/Dd4; Kf6:/Kf4:; Ke6:/Kg6:; cb4/cd4#; (1.-Sg4 2.Kg4: #)
A042 - 1.Lg7! (2.c4#) (1.Lf6? Td7!), 1.- Dd2/Da6:/Dc3+/Sd3+/Sc2:/Sd7/Le2:/Le4/c4 2.Sc7/Sc3/Sc3:/ Td3:/Lf3/Da8/De4/De4:/Tf5#
A043 - 1.Tf3!(2.Tf4#), 1.- Db8:/Dh6; Sg6/Lg3;Se2:/Sd3;Ld2:/Tf3:;Dc5:+/Dd6 2.Dc6:(De5?)/De5 (Dc6:?)
Lf5/Te3; d3/ed3; Sd2:/Lf3; S7c5:/Sd6:#
A044 - 1.Ta5! (zz), 1.- Sc~/Sh~/Lf7/Le6/g5/h~ - royal battery; Ta3/T:b4/Tc3/T:b2 BR-cross; Ld5/Lc4 - Self-blocks 2.K(x)e7/K(x)g5/K:f7/K:e6/K:f5/K:g6; b:a3/b3/b:c3/D:b2; Sb5/Sf3#; 1.- f4 2.Te4#
A045 - 1.Dd6! (2.D:b4#); 1.- Lc3/Sd3 - black selfblock & white interference; Se2/Le2 - white line cut; Dd5:/Ld5:/Sd5: - Nietvelt defence; Tb-/Ta4/Tb3: - black correction 2.Sc6/Sc2;Td1/Df4;Sf5/Te4/Le3; Tc4 Db6:/Sb3:#
A046 - 1.Df5! (2.e6#), 1.- T:c5/L:c5/Se6 - blockade of a BK flight / dual avoidance; T:e2/Tf2+/Tg3+ -opening of a white battery line; Ld6/Lf6/Sc4 - occupation of a WP capturing square; D:c7/Tg5/S:g6 -renunciation of the control of a square 2.Sb6(Sc3?)/Sc3(Sb6?)/De4(Dd3?); K:e2/K:f2/K:g3; e:d6/e:f6/ b:c4; S:e7/Td2/Df7# .
A047 - 1.Lb4! (2.Kb5:/Kc5#), 1.- T:b4/L:b4 - Novotny; Sb6/Sc7 - unguards + battery play ; .- T:d6+/L:d7+ - checks + battery play; Th5/Lf7 - direct unpins; Se3/Sf4- self-blocks 2.Kc5/K:b5; K:b6/K:c7; K:d6/K:d7; T:d4/S7c5; f3/S3c5#
A048 - 1.La7! (2.e4#), 1.- Sf:e3/Sc:e3;Sfd6/Scd6;Sg3/Sd2;Ta7:/Da7: 2.Le4/De4;Se7/Sb6;Lg8/Da5:; Db5/Dc6#. (1.- Lb1 2.D:c4#; 1.- Tc5 2.T:c5#; 1.- D:c8 2.Dc6#; 1.- Tg8+ 2.L: g8#)
A049 1.Se4 (2.Sd6#), 1.- Lb4/Tb4/c4;Tf7+/Tg6+/Sh5+; Te6:/Se4:/gh3 2.S:g3/Se3:/Sd4; Df7:/Dg6:/ Dh5:; De6:/Le4:/Lh3:#
A050 - 1.f:g7? (2.Df7#) T:c5!; 1.f:e7! (2.Tf6/Df7#), 1.- T:c5/Te4-Fleck; b:c6/S:f3 - guard removal; T:f8/Dc3- S-promotion; Tf4/Sf5 - line-closing 2.Tf6/Df7; D:c6/L:c4; e:f8S/e:d8S; S:f4/D:f5 #
A051 - 1.L:b7!(2.Dc5#), 1.- Sb5~/Sd4:-black correction; Lc3~/Ld4:-black correction; Tf6+/Sf4+ - checks; Ta6/Lb3: - loss of the control of a field 2.Dd6/Dc7; Te3/De6; D:f6/L:f4; Tb5:/Sf3#. 1.- Td8(c8) 2.Df6#
A052 - 1.Ld6! (2.T:e5#), 1.- L:d6/Td6: - self-block; loss of a control ;capture of a white piece; c5/c3 un-block; loss of a control; Sg5:/Tg5: - capture of a white piece;; loss of a control; Ld3+/Lf5 masked battery capture of a black piece 2.S:b6/Se7; Da8/Da2; Sf4/Sf6; Td3:/Tff5:#
A053 - 1.Dg6 (zz), 1.- d5/f5/e6 - Larsen-theme; Ld1,Lf3/Lf1,Ld3 focus; Tg5/Lg5-Grimshaw; Tc4~/ Tc3:/ Td4/Tb4/Te4: - black correction 2.Tce6/De6/Tee6:; S:c4/Sg4:; D:f6/Df5; c4/Lc3:/cd4/cb4/De4:#
A054 - ** 1.- dc4:/Tf3 2.ed3:/ef3:#; 1.e3! (2.Tf4#), 1.- Te3:/Le3: - unguard of f4/ selfpin; dc4:/d2 - flight creation/ line opening; Tf3/e5 - guard of f4/ block; Tf8/Df8 - guard of f4 by ambush/unguard 2.Sf2/Sg3; Dd4/Lc2; Te6:/Sd2; Dh7/De6:#
A055 - 1.c3? (2.Sd2# A and 2.Se3# B) Ta2:!, 1.- T:c3/Lc3: - Novotny; L:f1/Tf1:/Df1: - capture & unguard 2.Sd2-A/Se3:-B; Kd7-C/Kd6:-D/Ld5:-E. 1.Le6! (2.Kd7# C and 2.K:d6# D), 1.- T:e6/Ld6: - Novotny; b4/Sb3 - interference; Dg1/Lb4 - control of battery line 2.Kd7/Kd6-C; Sd2-A/Se3-B; L:d5-E/Tb4#. (1.- L:b6 2.Tb4#). Odessa theme
A056 - 1.Lh6! ( 2.Tg6:#), 1.- Sc4/Sd3-Unpin + Antidual; Sf3/Sg4-Selfblock; Sc6/Sf7-Interferences; De2:+/Se3+ -Cross checks 2.Tf2 (Te4:?)/Te4: (Tf2?); g3/Tf5; Sg6:/Sd5;Se2/de3#. 1.- Df6 2.Te4:#
A057 - 1.Dh5! (2.De5#), 1.- L:d4/c:d4 - blocks (theme B II) with line-closing battery mates on the same square/ dual avoidance by Barulin II; Sc4/Sc6 - black line interference; T:f4/Sg4 - black-white line opening/renunciation of guard and faraway mates by WQ; Tf5/Sf3 - black renunciation of guard 2.c4(Sc4?)/Sc4(c4?); c3/Dd5; De8/Dh1; D:f5/D:f3#
A058 - 1.c5 (2.Sd7#), Ld3+/Tb4+ - direct checks; Le4/Te4 - Grimshaw; ef5/Sf6 - self-blocks; Dg2:/Td4 - echo-captures of rook by pawns 2.S:d3/cb4; c4/f6; De7:/Df7:; gf4/cd4#
A059 - 1.e6! (2.Te5#), 1.- Tf5/Tg5: - half-pin; d6/Ld6 - pickabish; Sd4:/Ld4: - obstruction / black correction 2.Sg3/Sf2; e:f7/Da8; Sc3/Sd6#
A060 - 1.Dh1! zugzwang, 1.- T ~/S-/d2 line-opening for white Queen; Sg4/hg5/Lf4 self-blocks; Lf6/Ld6:/ Ld4: - white annihilation by Bishop; 2.De4/Dh3/Db1; Lg6:/Sh6/e4; Tf6:/Sbd6:/Sd4:#. (1.- g:h5 2.S:h6#)
A061 - Tries: 1.f3? (2.Tf5#, Te4#) Lc2!; 1.e4? (2.Sd7#, Sc4#) Teb6:!; 1.Dc3? (2.ed4#, 2.Sd3#) Tbb6:!;
1.Lb4! (2.Dc5#), 1.- Sf6:/Se3: - Dual avoidance by same black Knight; Tc6/Td6 - dual avoidance by same black Rook; Tc3/Lc3 - Grimshaw 2.Tf5/Te4; Sd7/Sc4; ed4/Sd3;#. (1.- Lc2 (Lf3) 2.Sf3#). Tries with double threats demonstrating the two mates of each thematic group.
A062 - 1.g8D! (2.e5#), 1.- Le6/Te6 - Grimshaw; Te5/Te4:/Th4/Dd5: - direct defences; Te2:+/Dc5+/ Db3:+/Dc6+; Dc4+/Dd3:+ - checks 2.Df6:/Sf5; De3/De4:/e3/Dd5; Se2:/Lc5:/Sb3:/Sc6; Tc4:/Td3:#
A063 - 1.Dg3! (2.De5#), 1.- Tc7+/Tb6+/Tb5 - white royal battery; D:d4/T:d4/L:d4 - black selfpin; e:d6/e:f6/Sg4 - direct guard; f4/Sf4 - white line closure; 2.K:c7/K:b6/K:b5; Sc3/Sd2/Te3; S:d6/S:f6/D:f3; Dg6/D:f4#
A064 - 1.D:g4! (2.Dd7#), 1.- La5+/Da7+ - king battery; T:b5+/D:b7+ - king battery; L:d4+/Dc7+ - check; T:d8/T:e7 - black correction; Se6/Sgf5 - black correction; L:g4/S:g4/D:c8 - capture 2.K:a5/K:a7; K:b5/K:b7; D:d4/L:c7; ed8D/L:e7; D:e6/Dg6; Sc4:/Sf7/b:c8S #
A065 - 1.Sg2? e2!; 1.Sg6! (2.Sf4/Se5#), 1.- ef6:/e2 differentiation; Sg3~/Se4 - black correction; Lg6:/e5 -e.p.# simple and e.p. capture by Pd5; Sc3:/Sa3:-dual avoidance 2.Sf4/Se5; Df5:/Le2; dc6/de6; Te1/0-0-0 #
A066 - 1.Tg4! (2.ed#), 1.- Dh6+/D:h7+-checks; Lb5/Sd5-unpin; Lc7/Lb8-unblock; de/Se3-capture; Sf4/f4-interference; Sc6/Tc4-direct defense 2.K:h6/K:h7; Kf7/Dd5; D:c7/D:b8; d4/f4; ef/De4; Kg8/S:c4
A067 - 1.b4? (2.Td2# A and 2.Sb3# B) Tg3!, 1.- T:b4/Lb4: - Novotny; L:f1/Tf1: - capture, enabling battery play 2.Td2#-A/Sb3#-B; Kf5# -C/Kg5:# -D. 1.Tg4! (2.Kf5# -C and 2.K:g5# -D), 1.- T:g4/Lg4: - Novotny; L:c7/Tc7: - control of battery from c7; Sf7/Sg6 - enabling battery play 2.Kf5#-C/Kg5: ; Td2-A/Sb3-B; K:f7/Kg6:#. Odessa theme.
A068 - 1.Tf3! (2.Sd5#), 1.- Lf8/Lh8/ed4 sacrifice of a black piece; Dc6+/Dd6+/Tf3 move pelle and check; T:f3/Sdf3:/Shf3: - capture and loss of a control 2.D:f8/Dh8:/Ld4: ; T:c6/T:d6/T:b6; T:b6/Se4/Sg4#
A069 - 1.Dd7! (2.D:b5#), 1.- D:d6/Ld6: - Nietvelt defence; Tb5~/Ta5 - black correction; La4/ba6 - direct defence; Lc4/Sd4: - Black selfblock & White interference; Se3/Se4 - white line cut; Sd3/De8 - indirect defence 2.Sf6/Te5; Tc5/Db7:; c4/Dc6; . Sc7/Sc3; Se3:/fe4; f4/De6#
A070 - 1.Sg7! (2.Sf5#) White correction. 1.- Td6/Ld6 - Theme A defences with Grimshaw- effects; Lb~/L:d3! - black correction by BBb5; Sf~/S:e4! - black correction by BSf6; 2.Dc5/Se6; Dc4/S:f3; Td5/T:e4#. 1.Sg3? Ld6! Theme A defence.
A071 - 1.Da4 (2.Dd4#), 1.- e5/De5 - control of mating square + line interference; L:b5/T:b5 - unguard of black king's square; Lc4/Lb4 - line interference of mating man; Lc3/Se6 - control of mating square 2.Sf6/Te5: ; De4/Se7: ; D:c4/S:b4; S:c3/L:e6#
A072 - 1.Sd4:! (2.Dd7:#), 1.- e6/Le6 - pawn Grimshaw- Battery mates (same battery) with interference; Dc8/Th1 - Abandoning a battery guard- Battery mates (different batteries) with interference on same square; Dc6/e5 - Self- block- Double check with self- interference 2.Sc6/Sg2; Sde6/Sfe6; Sb5/Sf5#. (1.- Dh1 2.c8=S#)
A073 - 1.Sh4! (2.Dd4#), 1.- T:f3+/L:g6+- check; Lb2/Da1 direct defense; Td3/Ld3 - Grimshaw; Te4/Le4 - interference; T:b5/c:b - unpin 2.S:f3/S:g6; T:c5/D:g3; De4/Lc3; Df5/f4; Lc7/Td5;
A074 - 1.Lf4! (2.Td4#), 1.- L:f4/T:f4 - capture of the key man and self block; S4:d5/S6:d5 - capture of the mate threatening man; Te5/Tf5 - pinning of the mate threatening man; D:c3+/Le3 - direct guard and crosscheck; Sd3+/c:d6+ - crosscheck 2.Sf2/Sg5; Dc2/Dc4; T:e5/L:f5; S:c3/T:e3; c:d3/S:d6#
A075 - 1.Df7 (2.D:f4/e:f4#), 1.- Df6/Tf5 - closing of white line (Defence), move to focal point (Error), capture by D (Mate); L:f7/T:g4 - capture (D), move to focal point (E), capture by S (M); Sd5/Se6 - direct guard (D), S move to focal point (E), capture of S by D (M); e:d3+/e:f3+ - check (D), capture pf P by P on focal point (E), capture of P by S (M); d:e3/f:e3 - capture of P by P (D), gate opening (E), mate by P (M); Ld2/Df8 - back guard (D), capture on f4 (M) 2.D:f6/D:f5; S:f7/S:g4; D:d5/D:e6; S:d3/S:f3; d4/f4; D:f4/e:f4#
A076 - 1.Df6 (2.Df5,De5#), 1.- d:c2/d2; Te3/Tg3; Sg2/Sg6; S:d5/S:e6 2.Df5/De5; Sd2/D:f4; D:f3/Sg5; L:d5/d:e6#. (1.- Sc3+ 2.S:c3#)
A077 - 1.Te6! (2.Te4#), 1.- Ta:d3/Th:d3 self-pin; c:d/e:d white line-opening; D:d1/de loss of a control; Sf6/Sg5 anti-dual mates 2.Dc3/De3; Dc5/Df4; D:c4/Sc6; L:f6/g:hD(L)#
A078 - 1.- Dd4/Sd3/Sg4/Sf3: 2.Td4:/cd3/d3/Dg6:#, 1.Sd4!(2.Sec6#), 1.- Db3:+/Dc2:+; Kd4:/Dd4:; Sd3/Sg4; Sf3:/Lg7 2.Sb3:/Sc2:; Dd5:/Ld5:; Sd3:/Sg4:; Sef3:/Tf4:#
A079 - 1.Dd3:! (2.Dd5:#), 1.- Ld5~/Lc4+/Lc6+ - black correction + cross checks + Royal battery mates; Se2~/Sf4/Sd4+ - black correction + pin of white + exposure to capture; Te6:/Tf5: - masked battery+ pin of Black; Tf8/Th6 - masked battery + interferences 2.Dd6/Kc4:/Kc6:; f4/ef4:/ed4; Te7/Tg5; Tf7/Tg6#. (1.- Le4: 2.De4:#)
A080 - 1.Df4 (2.De5#), 1.- Sd7,Sd3/ Sf6+ - line opening+ dual avoidance; K:d4/Ke6 escape + selfpin; T:d4/L:d4 self-block + dual avoidance 2.Df7# (Df5?)/S:f6# (Dd6?); T:d1/ Dd6; Df5/Lc4#
A081 - 1.Dd6! (2.Db4#), 1.- D:d5/L:d5 - selfpinning Nietvelt; T:c2/Ld2 halfpinning; Sc5/Se5 - focal theme and diagonal mates; Sc3+/S:b2 - focal theme with pawn mates 2.Se6/Sc6; Df4/Sf3; Df6/D:f6; b:c3/c3#
A082 - 1.e3! (2.Dd4#), 1.- Sg8+/Sg4+; c5/Sc5; Da7/La7; Da4/Ta4; L:d7/S:d7/fe4 2.T:g8/T:g4; D:e6/d4; Sc6/Dc7; D:b8/S:d3; Sf7/T:d7/Tg5#
A083 - 1.c8=S! (2.Dd6#), 1.- Te6:/Tf5:/Tf7/Tg6,Th6 - masked battery T/B mates; .- Da4+/Lc6:+/La5+/a6+ - Royal battery mates + cross checks; Te3:/Tf4/Td4/Tg4: - black correction+ exposure to capture; Lc8:/Sf5: - direct 2.Te7/Tg5/Tf7:/Tg6; Ka4:/Kc6:/Ka6:/Kb6; Kc4/ef4/ed4/Kb4:; Dc5/Sf3#
A084 - 1.De6! (2.D:d5#), 1.- S:b4+/ Sc7+; Sb6/ Se7; Sc3/ Sf6; Se3/ Sf4; fg4/ gh5; Sd3/ Td2 2.T:b4/ T:c7; T:b6/ T:e7; Dc4/D:e5; f3/Sg3; D:g6/D:f5; ed3/ S:d2#
A085 - 1.L:f4 (2.e4#), 1.- Le3/Se3 - the same square, opening lines for D; S:d2/Sd6 - defences by S, mates by P; Te1/Lg6 - mates by L, capturing defences; T:f4/S:f6 - capturing mates by S 2.Da8De4; e6/ed6; Lf3/Le6; S:f4/S:f6#. (1.- De1 2.D:c4#)
A086 1.Dd7 (2.D:d6#), 1.- Tb4/Tc5 - dual avoidance+ blocking a white line; Se4/Sc4 selfblocking; L:a3/f5 - giving up guard; D:e3+/D:f4 - halfpinning 2.S:b4/Tc5:; Df5/D:b5; S:c3/Te5; S:e3/S:f4#
A087 - 1.b4 (2.T:c5#), 1.- T:d5/Sb7/Lb6 - self-block; S:e6/T:e6/D:e6 - removal of control; L:b4/cb4/T:c4 - removal of control 2.cb/L:b5/S:e7; d8S/deD/Se5; cdS/S:d4/Td6#. 1.cdS+? L:d8! 1.S:d4+? cd! 1.Td6+? T:d6!. 1.S:e7+? Kb6! 1.L:b5+ Kb7! 1.cb+? K:d5!. 1.deD+? T:e8! 1.Se5+? D:e5! 1.d8S ??
A088 - 1.c4 (2.Kf7#), 1.- L:d6 - simple king battery mates, 2.K:d6#; 1.- L:d7+/T:f6+ - check to the king and capture of checher; b:c3 e.p./d:c3 e.p. - e.p. effect; Tg7/f4 - selfpinning,halfpinning; d3/Sf3 - direct battery line control, capture with pawn e2 2.K:d7/K:f6; T:d4/T:b4; Tg4/S:g5; e:d3/ef3#
A089 - 1.f8D! (2.Dh8:#), 1.- Sc~/Se6:/Sb5 - line-opening + black correction; Lg7/Lf6/Le5 - withdraw of attacking bishop; Te4/Tg4/Th4: - direct defences; Dc5+/Lb3:+/Se3+ - checks 2.Td5/Se6:/Sc6; Dg7:/Df6:/Le5:; Te4:/Dg4:/Dh4; Lc5: Sb3:/De3:#
A090 - 1.De7 (2.Kd7#), 1.- Sc4/Sf5 - unpin by black interference with white battery double-chess; D:d2/L:g2 - unpin by black removal and capture of white man followed by white battery mate by unpinned man and control of free royal square; D:d5+/L:g4+ - capture of pinned white man with chess; T:f7/Lf6 - mate by royal batery 2.Te5/Sf2; Tf5/Sh2; D:d5/T:g4; K:f7/Kf6#
A091 - ** 1.- cb4,Td8 2.T:c4,D:d8#. 1.Td7! zz, 1.- c3+/e3+ - check defence; Lh3/Lh5 - focal effect; Td6/T:d7 unblock; c:d3/ed3/cb4 - white-line opening; Df6/Dg7/D:h8 unblock; f4/b5/ba6/Ta~ - uncovering 2. bc3/fe3; Se2/S:f5; T:d6/D:d7; T:d5/L:e5/D:c4; L:f6/L:g7/D:h8; T:e4/D:c5/Sc6/Sb5#
A092 - 1.Sa6! (2.Db3), 1.- T:b8/T:c6 unguard; Sgf6,Sef6/Sc3/Sd2 interference; S:d6/S:c5/S:e7 - capture of white; 2.Sc7/ef8S; g:f5/Te5/Sf4; D:d6/S:c5/T:e7#
A093 - 1.Lf2! (2.T:f4#), 1.- Tg4+/Ld4/Te4/Sc5 - rook battery mates; Td7/Ld7/Td4 - line-closing; T:c4/Se3/D:c6 - unguards 2.T:g4/T:c3/Tc5/Td4; De6/Se7/S:c3; e4/S:e3/D:c6#
A094 - 1.Dh2 (2.Kd2#), 1.- Sc2/Sb3 - giving the flights wK with dual avoidance; L:b4+/T:d3+ - giving the flights wK with check; L:b6/Tg2 unpinnings; d5/g3 - opening the lines; Te7/Dg5 - giving the flights bK captures on the lines; T:e8/D:h5 - giving the flights bK mates by another umits 2.K:c2 (Kb3?)/ K:b3 (Kc2?); K:b4/ K:d3; Sc6/d4; .b8DD:g3; T:e7/T:g5; f:e8D/D:h5#
A095 - 1.Sh6! (2.Sf7#), 1.- D:e4/T:e4/L:e4 self-pins; d:c6/d:e6/d6 - different line openings by the same pawn; Lf~/Lg5/L:g7! - unblocking moves, black correction; 2.Sd3/f4/Sf3; L:c6/L:e6/Dd4; T(:)e7/T:g5/ L:g7#
A096 - 1.Te6! (2.Tf4#), 1.- d5+ 2.Dd5#, (A-a); 1.- Db3+ 2.cb3# (A-b); 1.- Ld4 2.c3#(B-b); 1.- c5 2.Sd6#(B-c); 1- Tf2 2.Te3#(C-c); 1.- Tg4 2.Sf6#(C-d); 1.- Te6 2.Sg5# (D-d); 1.- de6 2.Dd3# (D-a). A - check a - line opening; B - interference b - battery open; C - direct guard c unguard; D - unpin d - focal thema.
A097 - 1.Sd2!(2.Sb3:#), 1.- Dd1/Ta3; Te6/Le6; e6/Se6 2.Sf3:/Lb2; Se5/Db6; Sh6:# (Db6:?; Dd7:?)/Dd7:#(Sh6:?; Db6:?). (1.- La4 2.Sh6:#)
A098 1.- Dc4/D:d3 2.Tc4:/Tc4#; 1.Te2 (2.Te4#), 1.- Dc4/Dd3:/Sd6/Sf6/Lg2/Sc5/Sc3/cd/ed 2.Dc4:/Td3:/ Le5/Se6/Lf2:/Db2/De3/ Sc6/Sf5#. 2x3x4=9!
A099 - 1.Df5! (2.D:e5#), 1.- Se~/ S:d3; S:e6/gf5; dc4/g4/g2; D:d6/T:e2; D:b6+/Dc6+; Db5/D:c4 2.Dg4/D:d3; S:e6/S:f5; De4/Df4/Df2; Tb:d6/S:e2; L:b6/T:c6; T:b5/T:b4#
A100 - 1.Sf6:(2.Te4#), 1.- c3/Ld5/Ld7:+/Lf7+/Td4/Te3/hg/Lf5: 2.Sf3/Dd6/Sd7:/Sf7/Dd4:/De3:/ Sg4:/ Tf5:#. Formula 2x2x2x2=8!
A101 - 1.Se2! (2.S:g3#), 1.- La3+/L:c3+/bc+/ba+; Tf3/Th3/Tg4/T:g5; Se5/e5/D:b8/T:b8; 2.K:a3/K:c3/ K:c5/K:a5; gf/gh/g3/g4; T:e5/Sf6/Ld5/L:g6#. (1.- d2-de 2.Db1#,1.- T:g2 2.D:g2#)
A102 - 1.b:c4 (2.Kf5#), 1.- D:c4/T:c4/L:c4 pinnings; Sc5/Le3/Ld3 - self-blocks and mates on c3; L:h3+/L:g3/T:h5 - giving the flights by captures 2.Sb3/Sc6/Se2; Dc3/Lc3/c3; K:h3/K:g3/K:h5#
A103 - 1.c:d (2.Tb~#), 1.- Sfd6/Sbd6; Se3/Sc3; Tf8/Db6; L:g2+/T:d3+ 2.De5/Sf4; Sc5/Sf2; Tb8/T:b6; D:g2/e:d#
A104 - 1.La8 (2.Sb7#), 1.- Td4/Ld4; Td3/Ld3; Sc:d5/Se:d5; 2.D:e5/S:c4; S:e4/b5; Df6/Df8#
A105 - 1.Da3 (zz), 1.- Sc~/ Sh~ - primary defence + direct unguard; Lf~ /Lg2/Le2 - primary defence + dual avoidance + line closing; Ld2/Ld3 - indirect block - "B2"; L:b5/S:f5 - square vacation (recapture)+ black correction; bc6/gf3 - simple square vacation(recapture); De4/De5 - clearance duel BR-WD 2.T:e7/S:g4; D:c3-Te2/D:c3/T:e2; Se2/Sc2; S:b5/S:f5; Sc6/Sf3; T:e4/T:e5#
A106 - 1.Te8 (2.d:e3#), 1.- T:e8/S:c2 - capture (Defence), focal theme (Error), mate by S (Mate); Le6/e:d2 - gate opening (E), mate by P.move (M); Le4/Le5 - closing of white line (D), L move to focal point (E), capture of L (M); c:d2/c4 - P giving flight (D), preliminary opening of white line (E), capture of S (M); T:e2/T:f3 - direct guard (D), capture of P by T on focal point (E) capture T by S (M); Sc4/Sd5 - direct guard (D), S move to focal point (E), capture of S by D (M). 2.S:f5/Sb3; f5/e3; T:e4/L:e5; D:a1/L:b6; S:e2/S:f3; D:c4/D:d5#.