r1bk2n1/5p2/6pr/P1pp3p/2PN2Pb/BP3P2/1RPQ4/4KBNR w K - 0 23
FEN state: r1bk2n1/5p2/6pr/P1pp3p/2PN2Pb/BP3P2/1RPQ4/4KBNR w K - 0 23 ; Best move: h1h4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8 and black knight at g8. Black pawn at f7. Black pawn at g6 and black rook at h6. White pawn at a5, black pawn at c5, black pawn at d5 and black pawn at h5. White pawn at c4, white knight at d4, white pawn at g4 and black bishop at h4. White bishop at a3, white pawn at b3 and white pawn at f3. White rook at b2, white pawn at c2 and white queen at d2. White king at e1, white bishop at f1, white knight at g1 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.