MESON Chess Problem Database

Problem Display
PID: 18655 (2R4q/bpB4p/b2p4/3P4/P1kPQ3/P7/K3N3/8 w - - 0 1)

Hashavit, Zvi

2nd HM., Israel Ring Ty., 1957

2R4q/bpB4p/b2p4/3P4/P1kPQ3/P7/K3N3/8

#2

9 + 7

3841 The Art of Israeli Chess Composition 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Bb6#
    • 1...Qe5
      • 2.Bb6#
    • 1...Qf6
      • 2.Bb6#
    • 1...Bxd4
      • 2.Bd8#
  • Tries
    • 1.Bxd6+?
      • 1...Bc5
        • 2.Rxc5#
      • 1...Qxc8!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qd3#
      • 1...Kc3
        • 2.Ba5#
      • 1...Qxd4
        • 2.Bb6#
      • 1...Bxd4
        • 2.Bd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(g);N_GUARD,P_SPINQ(g),XP(E)::R(I)+B(H)
    • Q(g);N_GUARD::R(I)+B(H)
    • B(d);N_GUARD,P_SPINB(d),XP(E)::R(I)+B(H)
  • Tries
    • Try
      • B(H);CHECK,XP(c)
      • Vars
        • B(d);N_GUARD,P_SPINB(d)::R1(I),XB(d)
      • Refutation
        • Q(g);XR(I)
  • Actual
    • S(B);
    • Threat
      • QAB1(F)
    • Vars
      • K(a);P-FLIGHT::R(I)+B(H),DCHECK
      • Q(g);N_GUARD,P_SPINQ(g),XP(E)::R(I)+B(H)
      • B(d);N_GUARD,P_SPINB(d),XP(E)::R(I)+B(H)
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