MESON Chess Problem Database

Problem Display
PID: 99848 (5Q2/1K6/n2pp3/2pk1p2/8/2BPP1P1/8/8 w - - 0 1)

Pinter, Jozsef

Magyar Sakkelet, 1983

5Q2/1K6/n2pp3/2pk1p2/8/2BPP1P1/8/8

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.e4#
    • 1...e5
      • 2.Qf7#
      • 2.Qg8#
  • Tries
    • 1.Be5?
      • threat
        • 2.Qxd6#
      • 1...dxe5
        • 2.Qd8#
      • 1...Kxe5!
    • 1.Qxf5+?
      • 1...e5
        • 2.Qf7#
        • 2.e4#
      • 1...exf5!
    • 1.Qa8?
      • threat
        • 2.Kxa6#
        • 2.Kb6#
        • 2.Ka7#
        • 2.Kc8#
      • 1...c4
        • 2.Kb6#
      • 1...e5
        • 2.Qg8#
      • 1...Sc7
        • 2.Kxc7#
      • 1...Sb8
        • 2.Kxb8#
      • 1...Sb4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qh1#
      • 1...c4
        • 2.Qd4#
      • 1...e5
        • 2.Qg8#
      • 1...f4
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::P(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAR1(F),XP(e)
      • Vars
        • P(e);OGATEB,SBLOCK,XB(A)::QAR(F)
      • Refutation
        • K(b);P-FLIGHT,XB(A)
    • Try
      • Q(F);CHECK,XP(c)
      • Refutation
        • P(f);XQ(F)
    • Try
      • Q(F);
      • Threat
        • DUALS(4)
      • Vars
        • P(a);::QAB(F)+K(E)
        • P(f);OGATEB::QAB(F)
        • S(d);::QAB(F)+K(E),XS(d)
      • Refutation
        • S(d);
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • P(a);N_GUARD::QAR1(F)
      • P(f);OGATEB::QAB(F)
      • P(c);N_GUARD::P(C)
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