MESON Chess Problem Database

Problem Display
PID: 135831 (8/4p1p1/6KP/3P2p1/1Q2PP1k/6pp/5PRb/6N1 w - - 0 1)

Hadzi-Vaskov, Georgi

9th Place, Liga Problemista, 2009/1

8/4p1p1/6KP/3P2p1/1Q2PP1k/6pp/5PRb/6N1

#2

9 + 7

273 Mat Plus 2009

SOLUTION

  • SOUND
  • Sets
    • 1...gxf2
      • 2.Sf3#
    • 1...g4
      • 2.Qxe7#
  • Tries
    • 1.Qxe7?
      • threat
        • 2.Qxg5#
      • 1...Kg4
        • 2.Qxg5#
      • 1...gxh6!
    • 1.fxg5?
      • threat
        • 2.e5#
      • 1...Kg4
        • 2.e5#
      • 1...gxf2
        • 2.Sf3#
      • 1...e5!
  • Keys
    • 1.e5!
      • threat
        • 2.fxg5#
      • 1...Kg4
        • 2.fxg5#
        • 2.f5#
      • 1...gxf2
        • 2.Sf3#
      • 1...gxf4
        • 2.Qxf4#
      • 1...g4
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);XP(B)::S(A)
    • P(e);OGATEB,SBLOCK::QAB(D),XP(f)
  • Tries
    • Try
      • Q(D);P_PINP(e),XP(f)
      • Threat
        • QAB1(D),XP(e)
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,P_SPINP(b)::QAR1(D),XP(e)
      • Refutation
        • P(g);XP(I)
    • Try
      • P(F);XP(e)
      • Threat
        • QAR(D)+P(E)
      • Vars
        • K(d);P-FLIGHT,P_SPINP(b)::QAR(D)+P(E)
        • P(b);XP(B)::S(A)
      • Refutation
        • P(f);
  • Actual
    • P(E);
    • Threat
      • QAR(D)+P(F),XP(e)
    • Vars
      • P(b);XP(B)::S(A)
      • P(e);OGATE,P_SPINP(e),XP(F)::QAR2(D),XP(e)
      • P(e);OGATEB,SBLOCK::QAB(D),XP(f)
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