MESON Chess Problem Database

Problem Display
PID: 68169 (5B2/r1p2RP1/p1p3pb/1QpPknqR/5p2/2K1pP2/B7/8 w - - 0 1)

Pituk, Alexander

Hlas l'udu, 1977

5B2/r1p2RP1/p1p3pb/1QpPknqR/5p2/2K1pP2/B7/8

#2

9 + 12

5865 Czech Album (1976-1978) 1983

SOLUTION

  • SOUND
  • Tries
    • 1.Qxc6?
      • threat
        • 2.Qe6#
      • 1...Sxg7
        • 2.Qf6#
      • 1...Qf6
        • 2.Qxf6#
      • 1...Qe7
        • 2.Rxe7#
      • 1...Sd4
        • 2.Qf6#
      • 1...Sd6!
  • Keys
    • 1.Qxc5!
      • threat
        • 2.dxc6#
        • 2.d6#
      • 1...cxd5
        • 2.Qxd5#
      • 1...Qe7
        • 2.Qxe7#
        • 2.d6#
      • 1...Qd8
        • 2.Qd4#
        • 2.d6#
      • 1...Sd6
        • 2.Qd4#
        • 2.dxc6#
      • 1...Se7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);XP(h)
      • Threat
        • QAR1(D)
      • Vars
        • S(e);P_SPINQ(f),XP(H)::QAB1(D)
        • Q(f);N_GUARD,P_SPINS(e)::QAB1(D),XQ(f)
        • Q(f);N_GUARD,P_SPINS(e)::R(G),XQ(f)
        • S(e);P_SPINQ(f)::QAB1(D)
      • Refutation
        • S(e);P_SPINQ(f)
  • Actual
    • Q(D);XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • P(h);OGATE,P_SPINP(h),XP(E)::QAR1(D),XP(h)
      • S(e);N_GUARD,P_SPINQ(f)::QAR2(D),XS(e)
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