Chess.com - Play Chess Online - Free Games
Play chess on Chess.com - the #1 chess community with +30 million members around the world. Play online with friends, challenge the computer, join a club, solve puzzles, analyze your games, and learn from hundreds of video lessons. You can also watch top players and compete for prizes.
Shoulder pads mate variation. This one takes advantage of the full attacking range of Queen and position of opponent's King on limits of the board is irrelevant, only note King's "shoulder pads" block left/right upper diagonal squares on this variation.
Any other black defense than Nc6 loses game. Game after N x pawn, Bh3+ , Rook has to sacrifice because Kb8 leads to Rd8# (mate). Instead of taking rook with bishop, taking with rook, again sets the scenario for mate in 6 moves if black King doesn't prevent from discovered check by Bh3 which starts the mate in 5