MESON Chess Problem Database

Problem Display
PID: 81430 (3K4/6N1/R1Pk2bQ/1B1n4/1p3P2/1Np1p3/2P1P3/8 w - - 0 1)

Casa, Alex

6th Prize, British Chess Magazine, 1952

3K4/6N1/R1Pk2bQ/1B1n4/1p3P2/1Np1p3/2P1P3/8

#2

10 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Qg5?
      • threat
        • 2.Qe5#
      • 1...Sxf4
        • 2.Qc5#
        • 2.c7#
      • 1...Bf5!
  • Keys
    • 1.Bc4!
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Sb6
        • 2.Qxg6#
      • 1...Sf6
        • 2.c7#
      • 1...Sc7
        • 2.Sf5#
      • 1...Se7
        • 2.Se8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);N_PINB(f)
      • Threat
        • QAB1(H)
      • Refutation
        • B(f);
  • Actual
    • B(E);
    • Vars
      • S(d);OGATE,XP(D)::QAB(H),XS(d)
      • S(d);N_GUARD::QAR(H),XB(f)
      • S(d);N_GUARD,N_SPINB(f)::R(F)+P(G)
      • S(d);::S(I)
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