MESON Chess Problem Database

Problem Display
PID: 129736 (8/2p5/2N3p1/K2k4/1Bp1p1B1/2p5/8/7Q w - - 0 1)

Klepacek, Miroslav

Straz lidu, 1950

8/2p5/2N3p1/K2k4/1Bp1p1B1/2p5/8/7Q

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Qxe4#
  • Tries
    • 1.Bf5?
      • threat
        • 2.Qxe4#
      • 1...Kxc6
        • 2.Qxe4#
      • 1...gxf5!
    • 1.Be6+?
      • 1...Kxc6
        • 2.Qxe4#
      • 1...Kxe6!
    • 1.Qg1?
      • threat
        • 2.Qc5#
      • 1...e3
        • 2.Qh1#
        • 2.Qg2#
      • 1...Kxc6!
    • 1.Qh7?
      • threat
        • 2.Qd7#
      • 1...e3
        • 2.Qh1#
      • 1...Kxc6!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Se7#
      • 1...Kxc6
        • 2.Qa8#
      • 1...e3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT,XS(E)::QAB(A),XP(c)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAB1(A),XP(c)
      • Vars
        • K(d);S_FLIGHT,XS(E)::QAB(A),XP(c)
      • Refutation
        • P(e);XB(C)
    • Try
      • B(C);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(E)::QAB(A),XP(c)
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT,XB(C)
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • QAR1(A)
      • Refutation
        • K(d);S_FLIGHT,XS(E)
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • QAR2(A)
      • Vars
        • P(c);OGATEB::QAB(A)
      • Refutation
        • K(d);S_FLIGHT,XS(E)
  • Actual
    • Q(A);N_PINP(c)
    • Threat
      • S(E)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • P(c);OGATEB::QAB(A)
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Developed and maintained by Brian Stephenson.
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