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• Copyright 1991,1996, 1997, 1998 John Richard Coffey.
• If you find any errors, then please let me know.- John.
• Please use the links below to center the problems, find the solution, and to advance to the next problem.

4W0081 [solution]	_____	4W0082 [solution]      [Next]
4W0083 [solution]	_____	4W0084 [solution]      [Next]
4W0081 this is a good test to see if you can keep track of where the pieces are. 1. Rxg7+ Kh8 2. Rf7+ and now black should give up the exchange with Rxa1+ or else allow Kg8 3. Nf6+! and now either Kf8 4. Rf7 mate or Kh8 4. Rh7 mate	_____	4W0082 Fritz 5 thinks that the only good move for white here is 1. Bh3! No good is 1. Qxa8+ where after Ke7 Black has the duel threat on the queen and 2. ... Ng3+ forcing mate on move 4. So 1. Bh3 f5 and now it is safe to play 2. Qxa8+ and 3. Qxh8
4W0083 1. Nxe6 the threat is 2. Ng5+ and 3. Nxf7. So if 1. ... fxe6 2. Qxe6+! and now not 2. ...Kf8?? that gets mated. So if any piece goes to e7 then 3. Qf7+ is devastating. If 2. ... Ne7 3. Qf7+ Kd7 4. Rd1+ wins. if instead Qe7 Qf7+ Kd7 Rxe7	_____	4W0084 1. Rxd5 cxd5 2. Nf6+ gxf6 3. Rxe7 and white has a much better endgame and will win a pawn on b7 or d5. Best for Black is 3. ... Rb8 4. Rd7 winning a pawn. If 1. ... Rxe4 2. fxe4 cxd5 3. exd5 with a win of a pawn and a much better endgame.
4W0085 [solution]	_____	4W0086 [solution]      [Next]
4W0087 [solution]	_____	4W0088 [solution]      [Next]
4W0085 White wants to force his pawn to a queen somehow. 1. Bc5!! Bxc5 2. Rb8+ and now if the rook takes the pawn will queen. So 2. ... Ke7 3. Rxa8 wins the exchange and threatens to queen the pawn by way of Re8+ so white has to play Bxa7 4. Rxa7+	_____	4W0086 1. Qe3+ (Qf8+ works too but takes longer and is more complicated) and now 1. ... g5 is just bad because of 2. Qh3+ Kg6 3. Qxh7 mate. So if instead 1. ... Kh5 2. Rxh7+ Kg4 3. Qf3+ Kg5 and 4. h4 mate. It always helps to surround the king.
4W0087 1. h6! opens an arterty to the enemy king. The pawn on g7 can't move because Ra8+ threatens mate. In addition white threatens h7+ winning the bishop. So 1. ... Bd5 2. Rxg7+ and now if Kf8 3. h7 wins. So if instead 2. ... Kh8 3. Rd7+ Kg8 4. h7+ wins.	_____	4W0088 1. Qf6+ Qf7 2. Rb8+ Ne8 3. Qh8+ Qg8 4. Rxe8+ wins the Queen. If 1. ... Kg8 2. Ne7+ forces Qxe7 because if 2. ... Kh8 3. Qf8 mate. Also interesting is 1. Rb8+ Kf7 2. Rd8 trapping the Queen. If instead 1. ... Ne8 2. Qh8+ Kf7 3. Nd8+ Ke7 4. Qxh7+ forces black to give up the Queen.

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