Thursday, July 19, 2007
#2 John Nunn's Favourite Chess Puzzles
Ok, the first one was really too easy, so I post the second which is both more difficult and more instructive. I think resolving a problem is very useful to gain confidence, develop calculation ability and tactical intuition. So, why not to try? If you cannot find it, I'll give you a hint in a couple of days.
WHITE TO PLAY AND MATE IN TWO.
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19 comments:
good puzzle, took a bit, but i think i got it...
I'm probably wrong, but I don't think it can be done.
Some what questionable, as the stated goal cannot be forced. Best move is 1. Qc8 tightening the noose. There are 6 possible responses:
1.. Ke4 2. Qxa8 #
1.. Pe4 2. Rb5 #
1.. Pd3 2. RxP ck Ke4 3. Qc4 #
1.. Pf4 2. Rb5 ck Ke4 3. Qxa8 #
1.. Bb7 2. Rb5 ck Ke4 3. Qc2 ck Ke3 4. Rb3 # or if
1.. Bb7 2. Qxb7 ck Ke6 3. Qc6 ck Kf7 4. Qf6 ck Kg8 5. Rb8 # or if
1.. Bb7 2. Rxb7 Ke4 3. Rb3 Kd5 4. Qc6 #
1.. Bc6 2. Qxc6 #
So 3 of the 6 solutions are mate in 2, 2 more are mate in 3, and if black really wants to drag it out he can make it to mate in 4.
Third look is the charm.
1) Qa2 Kc4+ 2) Rf3#
1) Qa2 Ke6+ 2) Rb7#
1) Qa2 Ke4 2) Qg2#
1) Qa2 d3 2) Rb4#
1) Qa2 e4 2)Rb5#
1) Qa2 f4 2) Re3#
1) Qa2 Bb7 2) Re3#
1) Qa2 Bc6 2) Re3#
So I was wrong, it can always be # in 2 with 1) Qa2 !!
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