Valery Yuryevich Shanshin, KoBulChess, 01/03/2015. Código FEN: RNk5/qp2p3/1P6/2N1p3/p1R3r1/5p1B/Kb2p1r1/4Q3 w - - 0 1. |
Um problema recente: as Brancas jogam e dão xeque-mate em 2 lances!
(A recent problem: White to play and give checkmate in 2 moves!)
PCFilho
The key is 1 Qh4!, which threatens Qh8. The two pawn-move defenses involve the R+N battery on the c-file: 1 ... e4 opens the a1-h8 diagonal, but closes the fourth rank, and White fires the battery with 2 Ne6. 1 ... e6 unpins the rook, thus rendering the c8-h3 diagonal effectively closed, but opens the d8-h4 diagonal. With the queen now guarding d8, White fires the battery with 2 Ne4, blocking the rook's path. The other two defenses involve the other R+N battery on the back rank: 1 ... Qxb6 2 Nba6; and 1 ... Kd8 2 Nc6.
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