MESON Chess Problem Database

Problem Display
PID: 10876 (3B4/3R4/8/N1k1bR2/n3r1r1/P7/1NP5/K2b1B2 w - - 0 1)

Fabel, Karl

Problem (Zagreb), 1969

3B4/3R4/8/N1k1bR2/n3r1r1/P7/1NP5/K2b1B2

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Rxe5#
    • 1...Rc4
      • 2.Rxe5#
    • 1...Ref4
      • 2.Rxe5#
    • 1...Sb6
      • 2.Be7#
  • Tries
    • 1.c4?
      • threat
        • 2.Rd5#
      • 1...Rxc4
        • 2.Rxe5#
      • 1...Sc3
        • 2.Sd3#
      • 1...Sb6
        • 2.Be7#
      • 1...Rd4!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Rd5#
      • 1...Rxc4
        • 2.Rxe5#
      • 1...Rd4
        • 2.Sxa4#
      • 1...Sc3
        • 2.Sd3#
      • 1...Sb6
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::R(G),XB(f)
    • S(b);SBLOCK::B(I)
  • Tries
    • Try
      • P(D);
      • Threat
        • R1(H)
      • Vars
        • R(c);N_GUARD,XP(D)::R(G),XB(f)
        • S(b);N_PINS(C)::S(C)
        • S(b);SBLOCK::B(I)
      • Refutation
        • R(c);N_PINS(C)
  • Actual
    • B(B);
    • Threat
      • R1(H)
    • Vars
      • R(c);N_GUARD,XB(B)::R(G),XB(f)
      • R(c);N_PINS(C)::S(C),XS(b)
      • S(b);N_PINS(C)::S(C)
      • S(b);SBLOCK::B(I)
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