rnbq2nr/2pp1kbp/1p2p1p1/5p2/p4P1P/P2P4/NPP1PQPR/R1BK1BN1 w - - 0 13
FEN state: rnbq2nr/2pp1kbp/1p2p1p1/5p2/p4P1P/P2P4/NPP1PQPR/R1BK1BN1 w - - 0 13 ; Best move: g2g4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at d7, black king at f7, black bishop at g7 and black pawn at h7. Black pawn at b6, black pawn at e6 and black pawn at g6. Black pawn at f5. Black pawn at a4, white pawn at f4 and white pawn at h4. White pawn at a3 and white pawn at d3. White knight at a2, white pawn at b2, white pawn at c2, white pawn at e2, white queen at f2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1, white king at d1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 13. White to move.