1n2kbnr/1pqbp1p1/2p2p2/3p4/5PPp/P1NP4/P1PKP2P/R1BQ1BNR w k - 1 12
FEN state: 1n2kbnr/1pqbp1p1/2p2p2/3p4/5PPp/P1NP4/P1PKP2P/R1BQ1BNR w k - 1 12 ; Best move: d1e1
The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black queen at c7, black bishop at d7, black pawn at e7 and black pawn at g7. Black pawn at c6 and black pawn at f6. Black pawn at d5. White pawn at f4, white pawn at g4 and black pawn at h4. White pawn at a3, white knight at c3 and white pawn at d3. White pawn at a2, white pawn at c2, white king at d2, white pawn at e2 and white pawn at h2. White rook at a1, white bishop at c1, white queen 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 12. White to move.