MESON Chess Problem Database

Problem Display
PID: 6066 (6Rb/nPrk4/n1pBr3/2P1p3/5P1p/5N1B/8/3R2Kb w - - 0 1)

Schiffmann, Israel Abraham

4th Prize, Sports Referee, 1926

6Rb/nPrk4/n1pBr3/2P1p3/5P1p/5N1B/8/3R2Kb

#2

9 + 10

1397 Faszinierendes Schachproblem 1963

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.b8S#
    • 1...Sxc5
      • 2.Bxc5#
      • 2.b8S#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Bxe6#
      • 1...Sxc5
        • 2.b8S#
      • 1...Bd5!
    • 1.Rxh8?
      • threat
        • 2.Sxe5#
      • 1...exf4
        • 2.Se5#
      • 1...e4
        • 2.Se5#
      • 1...Bxf3!
  • Keys
    • 1.f5!
      • threat
        • 2.fxe6#
      • 1...Rg6+
        • 2.fxg6#
      • 1...Rxd6
        • 2.f6#
      • 1...Sxc5
        • 2.b8S#
      • 1...Re8
        • 2.Bf8#
      • 1...Rf6
        • 2.Sxe5#
      • 1...Rh6
        • 2.f6#
      • 1...Re7
        • 2.Bxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD::P=S
  • Tries
    • Try
      • S(C);
      • Threat
        • B(D),XR(f)
      • Vars
        • S(d);N_GUARD,XP(F)::P=S
      • Refutation
        • B(a);
    • Try
      • R(I);XB(j)
      • Threat
        • S(C),XP(c)
      • Vars
        • P(c);XP(E)::S(C)
        • P(c);::S(C)
      • Refutation
        • B(a);XS(C)
  • Actual
    • P(E);N_PINR(f)
    • Threat
      • P(E),XR(f)
    • Vars
      • R(f);CHECK,OGATE::B(D)+P(E),XR(f)
      • R(f);P_SPINR(f),XB(G)::B(D)+P(E)
      • S(d);N_GUARD,XP(F)::P=S
      • R(f);N_GUARD,SBLOCK::R(A)+B(G)
      • R(f);N_GUARD,S_CUTB(j)::S(C),XP(c)
      • R(f);::B(D)+P(E)
      • R(f);N_GUARD,SBLOCK::R(A)+B(G),XP(c)
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