r3kbr1/p1pb1ppp/1p2pnn1/8/1PPN2PP/B3KP1R/P3Q3/R4BN1 b q - 0 20
FEN state: r3kbr1/p1pb1ppp/1p2pnn1/8/1PPN2PP/B3KP1R/P3Q3/R4BN1 b q - 0 20 ; Best move: e6e5
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black bishop at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6, black pawn at e6, black knight at f6 and black knight at g6. White pawn at b4, white pawn at c4, white knight at d4, white pawn at g4 and white pawn at h4. White bishop at a3, white king at e3, white pawn at f3 and white rook at h3. White pawn at a2 and white queen at e2. White rook at a1, white bishop at f1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 20. Black to move.