MESON Chess Problem Database

Problem Display
PID: 45317 (8/3p3K/3Q4/1P1Pp1pR/3Nk3/1Bpp1pPP/5P2/B7 w - - 0 1)

Skarbnik, Zigi

3rd Prize, Israel Ring Ty., 1962

8/3p3K/3Q4/1P1Pp1pR/3Nk3/1Bpp1pPP/5P2/B7

#2

11 + 7

3841 The Art of Israeli Chess Composition 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qb4#
    • 1...c2
      • 2.Qg6#
    • 1...g4
      • 2.Qxe5#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Qg6#
      • 1...Kf5
        • 2.Qg6#
      • 1...dxc2!
    • 1.Sc6?
      • threat
        • 2.Qxe5#
        • 2.Qg6#
      • 1...Kf5
        • 2.Qxe5#
        • 2.Qg6#
      • 1...d2
        • 2.Bc2#
        • 2.Qg6#
      • 1...dxc6!
    • 1.Rh4+?
      • 1...g4
        • 2.Rxg4#
      • 1...gxh4!
    • 1.Rxg5?
      • threat
        • 2.Rg4#
        • 2.Qxe5#
      • 1...Kxd4
        • 2.Qb4#
      • 1...exd4
        • 2.Re5#
        • 2.Qf4#
        • 2.Qe5#
        • 2.Qe7#
        • 2.Qg6#
      • 1...d2!
  • Keys
    • 1.Sf5!
      • 1...Kxf5
        • 2.Qg6#
      • 1...d2
        • 2.Bc2#
      • 1...c2
        • 2.Qxe5#
      • 1...g4
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(d);OGATEB,P-FLIGHT,P_SPINP(a),XS(F)::QAR2(J)
    • P(a);::QAB(J)
    • P(f);::QAR1(J),XP(e)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB(J)
      • Vars
        • K(d);P_SPINP(f),S_FLIGHT::QAB1(J)
      • Refutation
        • P(b);XS(F)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Refutation
        • P(g);XS(F)
    • Try
      • R(I);CHECK
      • Vars
        • P(f);P_SPINP(f)::R(I),XP(f)
      • Refutation
        • P(f);XR(I)
    • Try
      • R(I);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • K(d);OGATEB,P-FLIGHT,P_SPINP(a),XS(F)::QAR2(J)
      • Refutation
        • P(b);
  • Actual
    • S(F);
    • Vars
      • K(d);OGATEB,P_SPINP(f),S_FLIGHT,XS(F)::QAB1(J)
      • P(b);OGATEB::B(C)
      • P(a);::QAR1(J),XP(e)
      • P(f);::QAR(J)
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