r1b1kb1r/3ppp2/npp1q1pp/p5P1/1PPP4/P4P1P/2Q1P1N1/RNB1Kn1R w KQkq - 0 15
FEN state: r1b1kb1r/3ppp2/npp1q1pp/p5P1/1PPP4/P4P1P/2Q1P1N1/RNB1Kn1R w KQkq - 0 15 ; Best move: e1f1
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at d7, black pawn at e7 and black pawn at f7. Black knight at a6, black pawn at b6, black pawn at c6, black queen at e6, black pawn at g6 and black pawn at h6. Black pawn at a5 and white pawn at g5. White pawn at b4, white pawn at c4 and white pawn at d4. White pawn at a3, white pawn at f3 and white pawn at h3. White queen at c2, white pawn at e2 and white knight at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, black knight at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 15. White to move.