MESON Chess Problem Database

Problem Display
PID: 148278 (5B2/K1pb4/pNR3n1/4R2r/r2k1p2/b1pNp3/2B5/8 w - - 0 1)

Goldstein, Alexander

Probleemblad, 1950

5B2/K1pb4/pNR3n1/4R2r/r2k1p2/b1pNp3/2B5/8

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Bc5#
    • 1...Rc4
      • 2.Rxc4#
    • 1...Ra5
      • 2.Rc4#
    • 1...Bc1
      • 2.Bc5#
    • 1...Bb2
      • 2.Bc5#
    • 1...Bb4
      • 2.Rc4#
    • 1...Bc5
      • 2.Bxc5#
  • Tries
    • 1.Rd5+?
      • 1...Ke4
        • 2.Se1#
        • 2.Se5#
      • 1...Rxd5!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Re4#
      • 1...Kxe5
        • 2.Bg7#
      • 1...Rxe5
        • 2.Rc4#
      • 1...Bxc6
        • 2.Sxc6#
      • 1...Sxe5
        • 2.Bc5#
      • 1...Bf5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • R(d);S_CUTB(a)::B(G)
    • R(d);N_GUARD::R1(E),XR(d)
    • R(d);N_GUARD::R1(E)
    • B(a);N_GUARD::B(G)
    • B(a);S_CUTR(d)::R1(E)
    • B(a);N_GUARD,P_PINS(D)::B(G),XB(a)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • R(g);XR(C)
  • Actual
    • S(B);
    • Threat
      • R1(C)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(C)::B(G)
      • R(g);SBLOCK,XR(C)::R1(E)
      • B(k);XR(E)::S(B),XB(k)
      • S(i);SBLOCK,XR(C)::B(G)
      • B(k);S_CUTR(g)::R1(C)
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