MESON Chess Problem Database

Problem Display
PID: 218630 (7n/2B5/8/3k1P2/P6Q/1N6/1nK2PR1/8 w - - 0 1)

Vilner, Yakov Semyonovich

Source?, 0000

7n/2B5/8/3k1P2/P6Q/1N6/1nK2PR1/8

#2

8 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Qd4#
      • 1...Ke4!
    • 1.Qe7?
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Qc5#
        • 2.Qe4#
      • 1...Kc6!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Rg4#
      • 1...Kc4
        • 2.Rg4#
      • 1...Ke4
        • 2.Rg5#
      • 1...Kc6
        • 2.Rg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(b);S_FLIGHT::QAR1(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAB(F)+R(C)
    • Vars
      • K(b);S_FLIGHT::R(C)
      • K(b);S_FLIGHT::QAB(F)+R(C)
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