MESON Chess Problem Database

Problem Display
PID: 129731 (8/8/5ppB/7B/4p2k/5R2/8/3Q1K2 w - - 0 1)

Klepacek, Miroslav

Straz lidu, 1950

8/8/5ppB/7B/4p2k/5R2/8/3Q1K2

#2

5 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh5
      • 2.Rh3#
  • Tries
    • 1.Kg2?
      • threat
        • 2.Rh3#
        • 2.Rf4#
        • 2.Qh1#
      • 1...Kxh5
        • 2.Rh3#
      • 1...gxh5
        • 2.Rh3#
        • 2.Rf4#
      • 1...g5
        • 2.Rh3#
        • 2.Qh1#
      • 1...exf3+!
    • 1.Qc2?
      • threat
        • 2.Qh2#
      • 1...gxh5
        • 2.Qxe4#
      • 1...Kxh5!
    • 1.Qd2?
      • threat
        • 2.Qh2#
      • 1...gxh5
        • 2.Qf4#
      • 1...Kxh5!
    • 1.Qd6?
      • threat
        • 2.Qh2#
      • 1...gxh5
        • 2.Qg3#
        • 2.Qf4#
      • 1...Kxh5!
    • 1.Qd7?
      • threat
        • 2.Rh3#
        • 2.Qh3#
        • 2.Qg4#
      • 1...Kxh5
        • 2.Rh3#
        • 2.Qh3#
      • 1...exf3
        • 2.Qg4#
      • 1...gxh5
        • 2.Rh3#
        • 2.Qh3#
      • 1...f5!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qh2#
      • 1...Kxh5
        • 2.Rh3#
      • 1...gxh5
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,XB(D)::QAB(A)+R(C),DCHECK
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • K(b);P-FLIGHT,XB(D)::QAB(A)+R(C),DCHECK
      • Refutation
        • P(a);CHECK,XR(C)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • P(d);SBLOCK,XB(D)::QAR(A),XP(a)
      • Refutation
        • K(b);P-FLIGHT,XB(D)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • P(d);SBLOCK,XB(D)::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XB(D)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XB(D)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • P(a);XR(C)::QAR1(A)
      • Refutation
        • P(c);
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(b);P-FLIGHT,XB(D)::QAB(A)+R(C),DCHECK
      • P(d);SBLOCK,XB(D)::QAR(A),XP(a)
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