MESON Chess Problem Database

Problem Display
PID: 921 (4R2B/3Kn3/5b2/1pNkP3/4pQ2/1Nnb4/4B3/2R5 w - - 0 1)

Bosetti, Fabio

The Problemist Supplement, 1993

4R2B/3Kn3/5b2/1pNkP3/4pQ2/1Nnb4/4B3/2R5

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxe4#
    • 1...Bh4
      • 2.Qf7#
    • 1...Bxe5
      • 2.Qf7#
    • 1...Bg5
      • 2.Qf7#
    • 1...e3
      • 2.Qd4#
  • Tries
    • 1.Qf5?
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Qxe4#
      • 1...Sxf5!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Qxe4#
      • 1...Kxe5
        • 2.Qg5#
      • 1...Sf5
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • K(e);P_SPINB(b),P_SPINP(c),P_SPINS(a),S_FLIGHT::QAR2(D),XP(c)
    • B(f);OGATE::QAB(D)
    • B(f);OGATE,XP(F)::QAB(D)
    • P(c);OGATE::QAR1(D)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • K(e);P_SPINB(b),P_SPINS(a),S_FLIGHT::QAR2(D),XP(c)
      • Refutation
        • S(g);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • K(e);P_SPINB(b),P_SPINP(c),P_SPINS(a),S_FLIGHT::QAR2(D),XP(c)
      • K(e);OGATEB,P-FLIGHT,P_SPINB(f),P_SPINS(g),XP(F)::QAR2(D)
      • S(g);N_GUARD::QAB(D)
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