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MatPlus.Net  Forum General Problemas - July 2015, issue n. 11 |
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| | Page: [Previous] [Next] 1 2 3 4 | | (61) Posted by Marjan Kovačević [Tuesday, Jul 28, 2015 23:04] |
Gentlemen, 40 out of these 60 posts sound like a 1 vs 1 discussion.
| | | (62) Posted by Andrew Buchanan [Wednesday, Jul 29, 2015 12:49]; edited by Andrew Buchanan [15-07-29] |
QUOTE
Gentlemen, 40 out of these 60 posts sound like a 1 vs 1 discussion.
Yes so much so that I assumed that *all* replies were from Nikola, and didn't spot that one was from Per :) I have edited yesterday's reply suitably. And you're right: this has gone on long enough.
Solution for the 2nd tanagra.
Thematic try:
1.cx b1= ?  a4 2.b7  e5 3.e7 a8#
Solution:
1.c1= b7 2.g5 f7 3.d8 d6#
Another interesting try:
1.c1=+? ~ (because it's still Royal, it must move immediately) and now the timing is wrong for to get past on the way to e7, whichever way it goes.
| | | (63) Posted by Nikola Predrag [Thursday, Jul 30, 2015 03:20]; edited by Nikola Predrag [15-07-30] |
Dear Andrew, I hoped your idea was something like a condition "wRY" and reciprocal dual-avoidance.
A condition Royalty (RY) would require some thinking but a partial (only for White) white Royalty (wRY), doesn't seem too complicated:
No white piece on a diagram has the royal attributes, including a white "king" ('K') (if it is on the diagram).
Before the play begins, White must appoint one of his pieces to act as the white royal piece wRY, and this act is a part of one solution (and its possible variations with the same white Royal piece). For the other solution(s), White may appoint another piece to act as wRY before the play.
 (= 3+3 )
h#3 Condition:wRY
wRYb4 - 1.axb1R+(c1B?) rRa4 2.Rb7 Se5* 3.Re7 rRa8# (*wrSe5 would be checked)
wRYc4 - 1.c1B(cxb1R?) Rb7 2.Bg5 Rf7* 3.Bd8 rSd6# (*wrRf7 would be checked)
If White would appoint his 'K' as wRY, White would have to move first. Such a "set-play" would have no solution in the case above, but such possibility might be used, e.g.:
 (= 3+1 )
h#2 Condition:wRY
wRYd5 - 1...rSe3+ 2.Kc3 'K'c2# - White is checked on the diagram and must move
wRYc1 - 1.Kb5 r'K'b2 2.Ka4 Sc3# - r'K' (royal "king") could be simply replaced by K (orthodox King)
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MatPlus.Net Forum General Problemas - July 2015, issue n. 11 |
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