MESON Chess Problem Database

Problem Display
PID: 45146 (1K4b1/8/2Bn4/1p1P2Pr/1r1R1N1p/1pN1BkbQ/3p1P1n/8 w - - 0 1)

Nicklin, John Joseph

3rd HM., BCF 045. Ty., 1943-1944

1K4b1/8/2Bn4/1p1P2Pr/1r1R1N1p/1pN1BkbQ/3p1P1n/8

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Qg2#
      • 2.Qh1#
    • 1...Sf7
      • 2.d6#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Se5#
      • 1...Sc4+
        • 2.Rf4#
      • 1...Sf7+
        • 2.d6#
      • 1...Sg4
        • 2.Qh1#
      • 1...Rxg5!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Se5#
      • 1...Sc4+
        • 2.Rf4#
      • 1...Sf7+
        • 2.d6#
      • 1...Rxg5
        • 2.Sxh4#
      • 1...Sg4
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(j);OGATE,P_PINS(F)::B(I)+P(G)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • S(j);CHECK,S_CUTR(f)::R1(E)
        • S(j);CHECK,OGATE::B(I)+P(G)
        • S(b);OGATE::QAB(D)
      • Refutation
        • R(i);XP(H)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • S(j);CHECK,S_CUTR(f)::R1(E)
      • S(j);CHECK,OGATE::B(I)+P(G)
      • R(i);N_GUARD,XP(H)::S(F),XP(g)
      • S(b);OGATE::QAB(D)
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