Chess problem: 6 days ago

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Bruno's Chess Problem: 01/11/2022

I.Pallos

Mate in 5(*****)
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1. Kd3! ... 2. Rxe5+ Nf5 3. Bxe7 ... 4. Nf4#
        3... Be2+ 4. Bxe2#
  1... a1=R,hxg1=?,Qh8 2. Rxe5+ Nf5 3. Rxf5+ exf5 4. Qxf5+ Rg5 5. Bxg4#
  1... a1=Q 2. Rxe5+ Nf5 3. Rxf5+ exf5 4. Qxf5+ Rg5 5. Bxg4#
     2... Qxe5 3. Bxg4+ Kxg4 4. Qf3+ Kxf3 5. Nxe5#
  1... a1=B 2. Rxe5+ Nf5 3. Rxf5+ exf5 4. Qxf5+ Rg5 5. Bxg4#
     2... Bxe5 3. Bxg4+ Kxg4 4. Qf3+ Kxf3 5. Nxe5#
  1... Nf5 2. Nf4+ exf4 3. Rxh2 ... 4. Bxg4#
        3... Qxf7,Bxd1 4. Bf6+ Nh4 5. Rxh4#
        3... f3 4. Bf6+ Nh4 5. Rxh4#
           4... Bh3 5. Bxf3#
        3... Nxh4 4. Rxg4 ... 5. Rhxh4#
        3... Be2+ 4. Bxe2+ f3 5. Bxf3#
  1... e4+ 2. Rxe4 ... 3. Bxg4#
     2... Bxd1 3. Nf4+ Kxh4 4. Nxg6+ ... 5. Rh4#
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2022-01-12 06:48:51, by problemist
Well, of course - in the variation 1.. Nf5 2. Nf4+ exf4 - 3. Rxh2 has to be played first before Bxg4+ becomes possible, see Bruno's solution for the fix.
2022-01-11 08:51:26, by problemist
"The 'Strange Loop' phenomenon occurs whenever, by moving upwards (or downwards) through levels of some hierarchial system, we unexpectedly find ourselves right back where we started." Douglas R. Hofstadter (* 1945) "Introduction: A Musico-Logical Offering" in "Gödel, Escher, Bach: an Eternal Golden Braid" (1979).

Magyar Sakkélet, Jan 1953 (988). A good chess puzzle. There are strong black threats (1.. a1Q, hxg1Q, exd5+), so the hidden key 1. Kd3! avoids the check on d5 and clears the e-file to threaten the forced 2. Rxe5+ Nf5 3. Rxf5+ exf5 4. Qxf5+ Rg5 5. Bxg4# which would follow on 1.. hxg1Q. The main variation is 1.. a1Q 2. Rxe5+ Qxe5 3. Bxg4+ Kxg4 and now a Q-sacrifice to decoy the bK 4. Qf3+ Kxf3 5. Nxe5#. On 1.. e4+ 2. Rxe4 (3. Bxg4#) Bxd1 3. Nf4+ Kxh4 4. Nxg6+ (double check) 5. Rh4#; 1.. Nf5 2. Nf4+ exf4 (Kxh4 3. Rxh2+ Kg5, Bh3 4. RxB#) 3. Bxg4+ Kxh4 4. Rxh2+ Kg5 5. Rh5#. The problem is not listed in Meson, PDB Server, and yacpdb does not give the solution, so my solution should be accepted with a grain of salt :-)

István Pallós, Hungarian composer from Kecskemét.

Since the opening in October 2000, I had published online more than 6650 free chess problems. If you want more details, look at my chess figures pages.

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