MESON Chess Problem Database

Problem Display
PID: 18673 (6Qn/2K1p1P1/4P3/3kBN1R/2p5/2PN4/5p2/1B3Rb1 w - - 0 1)

Hashavit, Zvi

HM., Probleemblad, 1957

6Qn/2K1p1P1/4P3/3kBN1R/2p5/2PN4/5p2/1B3Rb1

#2

11 + 6

3841 The Art of Israeli Chess Composition 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qa8#
  • Tries
    • 1.Kd7?
      • threat
        • 2.Qa8#
      • 1...Ke4
        • 2.Qa8#
      • 1...cxd3!
    • 1.Bd6?
      • threat
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sg3#
      • 1...Ke4
        • 2.Qa8#
      • 1...exd6
        • 2.Sg3#
        • 2.Sxd6#
      • 1...Sf7
        • 2.Sf4#
      • 1...Sg6
        • 2.Sb4#
      • 1...Bh2
        • 2.Sb4#
        • 2.Sg3#
      • 1...cxd3!
    • 1.Qd8+?
      • 1...Ke4
        • 2.Qa8#
      • 1...Kxe6!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sg3#
        • 2.Sd6#
      • 1...Bh2+
        • 2.Sg3#
      • 1...Ke4
        • 2.Qa8#
      • 1...cxd3
        • 2.Sd6#
      • 1...Sf7
        • 2.Sf4#
      • 1...Sg6
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::QAB(K)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Threat
        • QAB(K)
      • Vars
        • K(d);S_FLIGHT::QAB(K)
      • Refutation
        • P(c);XS(D)
    • Try
      • B(E);
      • Threat
        • DUALS(3)
      • Vars
        • K(d);S_FLIGHT::QAB(K)
        • S(f);::S(D)
      • Refutation
        • P(c);XS(D)
    • Try
      • Q(K);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB(K)
      • Refutation
        • K(d);S_FLIGHT,XP(H)
  • Actual
    • B(E);
    • Threat
      • DUALS(4)
    • Vars
      • B(a);CHECK::R(G)+S(F)
      • K(d);S_FLIGHT::QAB(K)
      • P(c);XS(D)::R(G)+S(F)
      • S(f);::S(D)
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