Here we have also two circuits, but added S Phoenix: 1.BPa4 BPb5 2.BPac4 BPbd5 3.BPe4 BPf5 4.BPg4 BPh5 5.BPb4 BPxb4…
Ruined when I checked the last 16 moves: 7.Kc3 Sd7! 8.Kb4 Sb8 9.Kc5 Sd7+ 10.Kd6 Sc5+ 11.Ke5 Sb3 12.BPbd4 Sxd4…
This situation seems to be a little competition between computer and human brain and this is quite exciting. After some…
In 1411 wK is necessary. Without him, we have 1.Sg5 Qd4 2.Sh7 Qh8#
Aleksey, I don't understand the question. Is it the same as Julia's question?
Eric & Vlaicu, please say: are promotions of the same Black Pawn thematic?
The same piece means the same unit. The unit may change during the solution by promotion or by some fairy…
About Bolero... Yes, of course, a small correction is needed in all definitions: "....Castling is permitted if the king and…
I assume the Bolero definition is imprecise concerning long castling. In orthodox chess, long castling is (of course) legal even…
From the definition: "Castling is permitted if the king and the rook are on their starting positions (or with Circe-reborn…