MESON Chess Problem Database

Problem Display
PID: 61849 (1N6/2p5/2P5/pk1K3p/R2p3R/1p6/1P4p1/6Q1 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Comm., Sakkelet, 1999

1N6/2p5/2P5/pk1K3p/R2p3R/1p6/1P4p1/6Q1

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qc5#
  • Tries
    • 1.Raxd4?
      • 1...Kb6
        • 2.Rb4#
      • 1...a4!
    • 1.Rhxd4?
      • 1...Kb6
        • 2.Rdb4#
      • 1...h4!
    • 1.Qe1?
      • threat
        • 2.Qxa5#
      • 1...Kb6
        • 2.Qxa5#
      • 1...Kxa4!
  • Keys
    • 1.Kxd4!
      • 1...Kxa4
        • 2.Kc5#
      • 1...Kb6
        • 2.Kc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATE::QAR1(A)
  • Tries
    • Try
      • R(C);XP(c)
      • Vars
        • K(e);P-FLIGHT::QAB(A)+R(C),DCHECK
      • Refutation
        • P(d);
    • Try
      • R(D);XP(c)
      • Vars
        • K(e);P-FLIGHT::QAB(A)+R(D),DCHECK
      • Refutation
        • P(f);
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(d)
      • Vars
        • K(e);P-FLIGHT::QAB1(A),XP(d)
      • Refutation
        • K(e);P_SPINP(c),S_FLIGHT,XR(C)
  • Actual
    • K(E);P-FLIGHT,XP(c)
    • Vars
      • K(e);S_FLIGHT,XR(C)::R(D)+K(E)
      • K(e);P-FLIGHT::QAB(A)+K(E)
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