MESON Chess Problem Database

Problem Display
PID: 160294 (8/1N5B/5PQN/pn1pP1K1/2pk1P2/8/3P4/3b4 w - - 0 1)

Afek, Yochanan

British Chess Magazine, 2006

8/1N5B/5PQN/pn1pP1K1/2pk1P2/8/3P4/3b4

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qd3#
  • Tries
    • 1.Kh4?
      • threat
        • 2.Qg1#
      • 1...c3
        • 2.Qd3#
      • 1...Bg4!
    • 1.f7?
      • threat
        • 2.Qb6#
      • 1...c3
        • 2.Qd3#
      • 1...Sd6!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Sf5#
      • 1...c3
        • 2.Qd3#
      • 1...Bc2
        • 2.Qg1#
      • 1...Bg4
        • 2.Qg1#
      • 1...Sd6
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::QAR1(F)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAB(F)
      • Vars
        • P(b);N_GUARD::QAR1(F)
      • Refutation
        • B(a);
    • Try
      • P(E);
      • Threat
        • QAB(F)
      • Vars
        • P(b);N_GUARD::QAR1(F)
      • Refutation
        • S(e);
  • Actual
    • Q(F);
    • Threat
      • S(G)
    • Vars
      • P(b);N_GUARD::QAR1(F)
      • B(a);OGATE::QAB(F)
      • S(e);OGATE::QAB(F)
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