1rbqk1nr/4pp1p/7b/pp4p1/3PnP2/2N1B2P/P1P1P1P1/R2QKBNR b k - 4 12
FEN state: 1rbqk1nr/4pp1p/7b/pp4p1/3PnP2/2N1B2P/P1P1P1P1/R2QKBNR b k - 4 12 ; Best move: e4c3
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at e7, black pawn at f7 and black pawn at h7. Black bishop at h6. Black pawn at a5, black pawn at b5 and black pawn at g5. White pawn at d4, black knight at e4 and white pawn at f4. White knight at c3, white bishop at e3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, 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 4. Full move number is 12. Black to move.