1n1k1bnr/rbp3p1/1ppq4/4ppP1/1p5p/4P3/P2P3P/RNBQKBNR w K - 2 21
FEN state: 1n1k1bnr/rbp3p1/1ppq4/4ppP1/1p5p/4P3/P2P3P/RNBQKBNR w K - 2 21 ; Best move: d2d3
The current state of the chess board is: Black knight at b8, black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black bishop at b7, black pawn at c7 and black pawn at g7. Black pawn at b6, black pawn at c6 and black queen at d6. Black pawn at e5, black pawn at f5 and white pawn at g5. Black pawn at b4 and black pawn at h4. White pawn at e3. White pawn at a2, white pawn at d2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, 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 2. Full move number is 21. White to move.