1r1qkb1r/2n5/pp4pp/1b1nPp2/P1pNP3/BPP2P1P/3K2PR/R2Q1BN1 w k - 3 23
FEN state: 1r1qkb1r/2n5/pp4pp/1b1nPp2/P1pNP3/BPP2P1P/3K2PR/R2Q1BN1 w k - 3 23 ; Best move: e4d5
The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black knight at c7. Black pawn at a6, black pawn at b6, black pawn at g6 and black pawn at h6. Black bishop at b5, black knight at d5, white pawn at e5 and black pawn at f5. White pawn at a4, black pawn at c4, white knight at d4 and white pawn at e4. White bishop at a3, white pawn at b3, white pawn at c3, white pawn at f3 and white pawn at h3. White king at d2, white pawn at g2 and white rook at h2. White rook at a1, white queen at d1, white bishop at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 3. Full move number is 23. White to move.