rnb1k3/4p1b1/ppp2p1r/2Pp1npp/1P6/NQ1qP2P/P3N1P1/1RB1KBR1 w q - 2 15
FEN state: rnb1k3/4p1b1/ppp2p1r/2Pp1npp/1P6/NQ1qP2P/P3N1P1/1RB1KBR1 w q - 2 15 ; Best move: b3d3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black king at e8. Black pawn at e7 and black bishop at g7. Black pawn at a6, black pawn at b6, black pawn at c6, black pawn at f6 and black rook at h6. White pawn at c5, black pawn at d5, black knight at f5, black pawn at g5 and black pawn at h5. White pawn at b4. White knight at a3, white queen at b3, black queen at d3, white pawn at e3 and white pawn at h3. White pawn at a2, white knight at e2 and white pawn at g2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at g1. Black queenside is the only castle move available. Half move number is 2. Full move number is 15. White to move.