A passed pawn increases in strength as the number of pieces on the board diminishes.
If you are reading this instead of viewing a chess puzzle or game, then you must enable JavaScript on this website.
[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Hjorth"]
[Black "Lundin"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "6k1/q5pp/2p2p2/3p1P1P/8/1P5R/P1P1rr2/3Q1R1K b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Qe3 2. Rxe3 ( { White can try: } 2. Rxf2 Qxh3+ 3. Kg1 Qg3+ 4. Kh1 Rxf2 5. Qg1 Qf3+ 6. Qg2 Qxg2# ) 2... Rh2+ 3. Kg1 Reg2# 0-1