MESON Chess Problem Database

Problem Display
PID: 51279 (8/1p6/3K4/1pN5/3k2N1/2R5/2nP4/1qR5 w - - 0 1)

Wigan, TK

Manchester Guardian, 1956

8/1p6/3K4/1pN5/3k2N1/2R5/2nP4/1qR5

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.dxe3#
  • Tries
    • 1.Se5?
      • threat
        • 2.Sf3#
        • 2.Rd3#
      • 1...Qb3
        • 2.Sf3#
      • 1...Sa1
        • 2.Sf3#
      • 1...Sa3
        • 2.Sf3#
      • 1...Se3
        • 2.Sf3#
        • 2.dxe3#
      • 1...Sb4
        • 2.Sf3#
      • 1...Se1!
  • Keys
    • 1.Re3!
      • threat
        • 2.Re4#
      • 1...Kc4
        • 2.Re4#
      • 1...Sxe3
        • 2.dxe3#
      • 1...Se1
        • 2.Se6#
      • 1...Sa1
        • 2.Se6#
      • 1...Sa3
        • 2.Se6#
      • 1...Sb4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE::P(B),XS(b)
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);::S(D)
        • S(b);::S(D)
      • Refutation
        • S(b);
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • K(c);P-FLIGHT,P_SPINS(b)::R(C)
      • S(b);OGATE,XR(C)::P(B),XS(b)
      • S(b);::S(E)
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