4knnr/r1p3b1/P1b1qp1p/1p1p1P2/P1P4P/3P2p1/1N2P1P1/R1BK1BNR w k - 1 23
FEN state: 4knnr/r1p3b1/P1b1qp1p/1p1p1P2/P1P4P/3P2p1/1N2P1P1/R1BK1BNR w k - 1 23 ; Best move: f5e6
The current state of the chess board is: Black king at e8, black knight at f8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at c7 and black bishop at g7. White pawn at a6, black bishop at c6, black queen at e6, black pawn at f6 and black pawn at h6. Black pawn at b5, black pawn at d5 and white pawn at f5. White pawn at a4, white pawn at c4 and white pawn at h4. White pawn at d3 and black pawn at g3. White knight at b2, white pawn at e2 and white pawn at g2. White rook at a1, white bishop at c1, white king at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 23. White to move.