r2qkbnr/2pbp3/p4ppp/P1np2P1/1pPP4/RQ3P2/1P1BP2P/1N1K1BNR w kq - 1 15
FEN state: r2qkbnr/2pbp3/p4ppp/P1np2P1/1pPP4/RQ3P2/1P1BP2P/1N1K1BNR w kq - 1 15 ; Best move: b3b4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black bishop at d7 and black pawn at e7. Black pawn at a6, black pawn at f6, black pawn at g6 and black pawn at h6. White pawn at a5, black knight at c5, black pawn at d5 and white pawn at g5. Black pawn at b4, white pawn at c4 and white pawn at d4. White rook at a3, white queen at b3 and white pawn at f3. White pawn at b2, white bishop at d2, white pawn at e2 and white pawn at h2. White knight at b1, white king at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 15. White to move.