MESON Chess Problem Database

Problem Display
PID: 199254 (8/1K2prb1/2p1Bp2/1p2P3/2PB1pp1/pP6/k4PPQ/N6R w - - 0 1)

Hoffmann, Fritz

Suomen Shakki, 1987

8/1K2prb1/2p1Bp2/1p2P3/2PB1pp1/pP6/k4PPQ/N6R

#2

11 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.f3?
      • threat
        • 2.g3#
      • 1...gxf3
        • 2.gxf3#
      • 1...g3!
    • 1.g3?
      • threat
        • 2.f3#
      • 1...fxg3
        • 2.fxg3#
      • 1...f3!
    • 1.b4?
      • threat
        • 2.cxb5#
        • 2.c5#
      • 1...bxc4
        • 2.Bxc4#
      • 1...c5!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(C);
      • Threat
        • QAR(E)+P(D)
      • Vars
        • P(d);OGATE,XP(C)::QAR(E)+P(D),XP(d)
      • Refutation
        • P(d);
    • Try
      • P(D);
      • Threat
        • QAR(E)+P(C)
      • Vars
        • P(c);OGATE,XP(D)::QAR(E)+P(C),XP(c)
      • Refutation
        • P(c);
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);OGATE,P_SPINP(e),XP(G)::B(J),XP(e)
      • Refutation
        • P(f);
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
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