MESON Chess Problem Database

Problem Display
PID: 215140 (8/8/8/8/4Q2K/3N4/7N/6k1 w - - 0 1)

Helmling, W

Funkschach, 1926

8/8/8/8/4Q2K/3N4/7N/6k1

#2

4 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se1?
      • threat
        • 2.Qg2#
      • 1...Kxh2
        • 2.Qg2#
      • 1...Kf2!
    • 1.Sf2?
      • 1...Kxh2
        • 2.Qh1#
      • 1...Kxf2!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qg2#
      • 1...Kf2
        • 2.Sh3#
      • 1...Kxh2
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT,XS(A)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT,XS(A)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • S(B);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);S_FLIGHT::S(B)
      • K(a);S_FLIGHT,XS(A)::QAR1(C)
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