MESON Chess Problem Database

Problem Display
PID: 215510 (2Q1N1N1/5k2/8/6K1/8/8/8/8 w - - 0 1)

Sassower, Viktor

Funkschach, 1926

2Q1N1N1/5k2/8/6K1/8/8/8/8

#2

4 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qd7+?
      • 1...Kxg8
        • 2.Qg7#
      • 1...Kf8!
    • 1.Qc5?
      • 1...Ke6
        • 2.Qf5#
      • 1...Kxe8
        • 2.Qe7#
      • 1...Kxg8!
  • Keys
    • 1.Kh6!
      • threat
        • 2.Sd6#
      • 1...Kf8
        • 2.Sd6#
      • 1...Kxg8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(D)::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT,XS(C)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • S(C)
    • Vars
      • K(a);P-FLIGHT::QAR(B)+S(C)
      • K(a);S_FLIGHT,XS(D)::QAR(B)+S(C)
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