rnb2k1r/7p/pqp1P3/P1P3p1/6P1/3PPp2/P2N3P/R1b1KB1R w K - 0 23
FEN state: rnb2k1r/7p/pqp1P3/P1P3p1/6P1/3PPp2/P2N3P/R1b1KB1R w K - 0 23 ; Best move: a5b6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at f8 and black rook at h8. Black pawn at h7. Black pawn at a6, black queen at b6, black pawn at c6 and white pawn at e6. White pawn at a5, white pawn at c5 and black pawn at g5. White pawn at g4. White pawn at d3, white pawn at e3 and black pawn at f3. White pawn at a2, white knight at d2 and white pawn at h2. White rook at a1, black bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 23. White to move.