1n2k2r/1bq1p1bp/2p2p1n/r2p2p1/pP1P2P1/P1P2P2/3QPKB1/R3R3 w - - 2 23
FEN state: 1n2k2r/1bq1p1bp/2p2p1n/r2p2p1/pP1P2P1/P1P2P2/3QPKB1/R3R3 w - - 2 23 ; Best move: b4a5
The current state of the chess board is: Black knight at b8, black king at e8 and black rook at h8. Black bishop at b7, black queen at c7, black pawn at e7, black bishop at g7 and black pawn at h7. Black pawn at c6, black pawn at f6 and black knight at h6. Black rook at a5, black pawn at d5 and black pawn at g5. Black pawn at a4, white pawn at b4, white pawn at d4 and white pawn at g4. White pawn at a3, white pawn at c3 and white pawn at f3. White queen at d2, white pawn at e2, white king at f2 and white bishop at g2. White rook at a1 and white rook at e1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. White to move.