MESON Chess Problem Database

Problem Display
PID: 64456 (R3N2k/8/4P3/2p2P1N/p1P3P1/b4p2/1rR5/B1Kb4 w - - 0 1)

Shahaf, Eliahu (formerly Feigin, Eliahu)

South African Chess Magazine, 1946

R3N2k/8/4P3/2p2P1N/p1P3P1/b4p2/1rR5/B1Kb4

#2

10 + 7

81 Chess 1947

SOLUTION

  • SOUND
  • Sets
    • 1...Kg8
      • 2.Sef6#
    • 1...Bb4
      • 2.Sef6#
  • Tries
    • 1.Rc8?
      • threat
        • 2.Sef6#
      • 1...Kg8
        • 2.Sef6#
      • 1...Kh7!
    • 1.Rd8?
      • threat
        • 2.Sef6#
      • 1...Kg8
        • 2.Sef6#
      • 1...Kh7!
  • Keys
    • 1.Rh2!
      • 1...Kh7
        • 2.Shf6#
      • 1...Kg8
        • 2.Sef6#
      • 1...Bc2
        • 2.Shf6#
      • 1...Be2
        • 2.Shf6#
      • 1...Bb3
        • 2.Sef6#
      • 1...Bb4
        • 2.Sef6#
      • 1...f2
        • 2.Shf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(g);N_SPINR(b),P-FLIGHT::R(I)+S(J),DCHECK
    • B(c);::R(I)+S(J)
  • Tries
    • Try
      • R(I);
      • Threat
        • R(I)+S(J)
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT::R(I)+S(J),DCHECK
      • Refutation
        • K(g);N_SPINR(b),P-FLIGHT
    • Try
      • R(I);
      • Threat
        • R(I)+S(J)
      • Vars
        • K(g);N_SPINR(b),P-FLIGHT::R(I)+S(J),DCHECK
      • Refutation
        • K(g);N_SPINR(b),P-FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(g);N_SPINR(b),P-FLIGHT::R(C)+S(G),DCHECK
      • K(g);N_SPINR(b),P-FLIGHT::R(I)+S(J),DCHECK
      • B(a);::R(C)+S(G)
      • B(a);::R(I)+S(J)
      • B(c);::R(I)+S(J)
      • P(d);::R(C)+S(G)
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