MESON Chess Problem Database

Problem Display
PID: 4604 (8/8/8/2p5/k1K3Q1/8/8/8 w - - 0 1)

West, JG

Game of Chess, 1882

8/8/8/2p5/k1K3Q1/8/8/8

#2

2 + 2

4349 Kleinste Schachaufgaben Drei- und Viersteiner 1970
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qd1+?
      • 1...Ka3
        • 2.Qb3#
        • 2.Qa1#
      • 1...Ka5!
    • 1.Qd7+?
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa7#
      • 1...Ka3!
    • 1.Qg1?
      • threat
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...Ka5!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qa1#
        • 2.Qa7#
      • 1...Ka3
        • 2.Qa1#
      • 1...Ka5
        • 2.Qa7#

Anticipated by 44561(1870), 56206(1881)

This anticipates 47232(1906), 22033(1923)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
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