MESON Chess Problem Database

Problem Display
PID: 163039 (1K6/8/4P1b1/3Q1pp1/R2PPNP1/3pkpP1/5n2/3BB3 w - - 0 1)

Janevski, Zivko

StrateGems, 2013

1K6/8/4P1b1/3Q1pp1/R2PPNP1/3pkpP1/5n2/3BB3

#2

11 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Qe5?
      • threat
        • 2.Sd5#
      • 1...Sxd1
        • 2.exf5#
      • 1...gxf4
        • 2.Qxf4#
      • 1...d2!
    • 1.exf5?
      • threat
        • 2.Qxf3#
      • 1...Sxd1
        • 2.Qe5#
      • 1...Se4!
  • Keys
    • 1.Qc5!
      • threat
        • 2.d5#
      • 1...Kxe4
        • 2.Qe5#
      • 1...Sxe4
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);
      • Threat
        • S(G)
      • Vars
        • S(a);N_GUARD,XB(A)::QAR(I)+P(F),XP(e)
        • P(f);OGATE,XS(G)::QAB1(I),XP(f)
      • Refutation
        • P(b);
    • Try
      • P(F);XP(e)
      • Threat
        • QAR1(I),XP(d)
      • Vars
        • S(a);N_GUARD,XB(A)::QAR2(I)
      • Refutation
        • S(a);
  • Actual
    • Q(I);
    • Threat
      • QAB(I)+P(E)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(F)::QAR1(I)
      • S(a);SBLOCK,XP(F)::S(G)
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