MESON Chess Problem Database

Problem Display
PID: 58341 (4n1b1/4K3/3PpP2/p3kN1R/r3Prp1/5pp1/3Q4/b1N2R1q w - - 0 1)

Marysko, Milos

Chess Life, 1959

4n1b1/4K3/3PpP2/p3kN1R/r3Prp1/5pp1/3Q4/b1N2R1q

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Sxg3#
    • 1...Raxe4
      • 2.Qxa5#
    • 1...Rfxe4
      • 2.Sh4#
  • Tries
    • 1.Sh4+?
      • 1...Kxe4
        • 2.Qd3#
      • 1...Rf5!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qxf4#
      • 1...Kxe4
        • 2.Sfxg3#
      • 1...Raxe4
        • 2.Qxa5#
      • 1...Rfxe4
        • 2.Sh4#
      • 1...Rxf5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(i);P-FLIGHT,XP(D)::S(E),XP(d)
    • R(e);N_GUARD,SBLOCK,XP(D)::QAR(C),XP(h)
    • R(f);N_GUARD,SBLOCK,XP(D)::R(F)+S(E)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(i);P-FLIGHT,XP(D)::QAB1(C)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • S(A);
    • Threat
      • QAB1(C),XR(f)
    • Vars
      • K(i);P-FLIGHT,XP(D)::S(E),XP(d)
      • R(e);N_GUARD,SBLOCK,XP(D)::QAR(C),XP(h)
      • R(f);N_GUARD,SBLOCK,XP(D)::R(F)+S(E)
      • R(f);P_SPINR(f),XS(E)::QAB1(C)
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