1r2kb2/p5pr/1pnp3p/1NP2pB1/Q1P1P3/3P1P2/P4P1P/1R1K2R1 w - - 0 23
FEN state: 1r2kb2/p5pr/1pnp3p/1NP2pB1/Q1P1P3/3P1P2/P4P1P/1R1K2R1 w - - 0 23 ; Best move: b5a7
The current state of the chess board is: Black rook at b8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at g7 and black rook at h7. Black pawn at b6, black knight at c6, black pawn at d6 and black pawn at h6. White knight at b5, white pawn at c5, black pawn at f5 and white bishop at g5. White queen at a4, white pawn at c4 and white pawn at e4. White pawn at d3 and white pawn at f3. White pawn at a2, white pawn at f2 and white pawn at h2. White rook at b1, white king at d1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. White to move.