rn4nr/2k1p3/p6b/1P1P2pp/1R6/1PN2PPb/3P1BR1/3QK3 w - - 2 23
FEN state: rn4nr/2k1p3/p6b/1P1P2pp/1R6/1PN2PPb/3P1BR1/3QK3 w - - 2 23 ; Best move: b5b6
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at g8 and black rook at h8. Black king at c7 and black pawn at e7. Black pawn at a6 and black bishop at h6. White pawn at b5, white pawn at d5, black pawn at g5 and black pawn at h5. White rook at b4. White pawn at b3, white knight at c3, white pawn at f3, white pawn at g3 and black bishop at h3. White pawn at d2, white bishop at f2 and white rook at g2. White queen at d1 and white king at e1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. White to move.