MESON Chess Problem Database

Problem Display
PID: 280277 (3K4/6k1/5NN1/8/4Q3/8/8/8 w - - 0 1)

Zimmer, Eligiusz

Uralski Problemist, 2001

3K4/6k1/5NN1/8/4Q3/8/8/8

#2

4 + 1

3713 Snap 2025

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4?
      • 1...Kh6
        • 2.Qg6#
      • 1...Kf7
        • 2.Qe7#
      • 1...Kf8
        • 2.Qe7#
      • 1...Kh8
        • 2.Qh7#
      • 1...Kxf6!
    • 1.Sf8?
      • 1...Kh6
        • 2.Qg6#
      • 1...Kf7
        • 2.Qe7#
      • 1...Kxf8
        • 2.Qe7#
      • 1...Kh8
        • 2.Qh7#
      • 1...Kxf6!
    • 1.Sh8?
      • 1...Kh6
        • 2.Qg6#
      • 1...Kf8
        • 2.Qe7#
      • 1...Kxh8
        • 2.Qh7#
      • 1...Kxf6!
  • Keys
    • 1.Sh4!
      • 1...Kxf6
        • 2.Qe7#
      • 1...Kh6
        • 2.Qg6#
      • 1...Kf7
        • 2.Qe7#
      • 1...Kf8
        • 2.Qe7#
      • 1...Kh8
        • 2.Qh7#

Anticipated by 223476(1926)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(A)
        • K(a);N_GUARD,P-FLIGHT::QAR1(A)
        • K(a);N_GUARD,S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • S(C);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(A)
        • K(a);N_GUARD,P-FLIGHT::QAR1(A)
        • K(a);N_GUARD,S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • S(C);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(A)
        • K(a);N_GUARD,S_FLIGHT::QAB1(A)
        • K(a);N_GUARD,S_FLIGHT,XS(C)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • S(C);
    • Vars
      • K(a);N_GUARD,S_FLIGHT,XS(B)::QAB1(A)
      • K(a);N_GUARD,S_FLIGHT::QAR1(A)
      • K(a);N_GUARD,P-FLIGHT::QAR1(A)
      • K(a);N_GUARD,S_FLIGHT::QAB1(A)
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