r1bqk1r1/p1ppn2p/np4p1/4ppP1/7P/1PP1PN2/PN1PP3/1RBQKB1R b Kq - 4 15
FEN state: r1bqk1r1/p1ppn2p/np4p1/4ppP1/7P/1PP1PN2/PN1PP3/1RBQKB1R b Kq - 4 15 ; Best move: e5e4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at d7, black knight at e7 and black pawn at h7. Black knight at a6, black pawn at b6 and black pawn at g6. Black pawn at e5, black pawn at f5 and white pawn at g5. White pawn at h4. White pawn at b3, white pawn at c3, white pawn at e3 and white knight at f3. White pawn at a2, white knight at b2, white pawn at d2 and white pawn at e2. White rook at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 4. Full move number is 15. Black to move.