r1b1kb1r/p1pq1p2/4p3/1p1p2pp/1P1n4/N1PPB1PN/P1Q2P1P/2R1KB1R w Kkq - 0 13
FEN state: r1b1kb1r/p1pq1p2/4p3/1p1p2pp/1P1n4/N1PPB1PN/P1Q2P1P/2R1KB1R w Kkq - 0 13 ; Best move: e3d4
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 a7, black pawn at c7, black queen at d7 and black pawn at f7. Black pawn at e6. Black pawn at b5, black pawn at d5, black pawn at g5 and black pawn at h5. White pawn at b4 and black knight at d4. White knight at a3, white pawn at c3, white pawn at d3, white bishop at e3, white pawn at g3 and white knight at h3. White pawn at a2, white queen at c2, white pawn at f2 and white pawn at h2. White rook at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.