MESON Chess Problem Database

Problem Display
PID: 7838 (5b2/p3p1p1/8/1Q6/3k2K1/P2B4/1PPppPp1/1n2r1q1 w - - 0 1)

Grinblat, Arieh

5th HM., Israel Ring Ty., 1994

5b2/p3p1p1/8/1Q6/3k2K1/P2B4/1PPppPp1/1n2r1q1

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sxa3
      • 2.c3#
    • 1...e5
      • 2.Qc4#
  • Tries
    • 1.b4?
      • threat
        • 2.Qc5#
      • 1...Kc3
        • 2.Qe5#
      • 1...e5
        • 2.Qc4#
      • 1...e6!
  • Keys
    • 1.f4!
      • threat
        • 2.Qe5#
      • 1...Ke3
        • 2.Qc5#
      • 1...Qe3
        • 2.Qc4#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD,XP(D)::P(B)
    • P(i);SBLOCK::QAR1(G)
  • Tries
    • Try
      • P(A);
      • Threat
        • QAB1(G)
      • Vars
        • K(g);S_FLIGHT::QAB(G)
        • P(i);SBLOCK::QAR1(G)
      • Refutation
        • P(i);
  • Actual
    • P(C);
    • Threat
      • QAB1(G)
    • Vars
      • K(g);S_FLIGHT::QAB(G)
      • Q(c);SBLOCK::QAR1(G)
      • P(i);::QAB1(G),XP(i)
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