MESON Chess Problem Database

Problem Display
PID: 74888 (8/7B/1K1B3R/1pp5/2kp2P1/1p6/1P4N1/5R2 w - - 0 1)

Golha, Jan

Comm., Pravda, 1974

8/7B/1K1B3R/1pp5/2kp2P1/1p6/1P4N1/5R2

#2

8 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Kc6?
      • 1...d3
        • 2.Rf4#
      • 1...b4
        • 2.Rc1#
      • 1...Kb4!
    • 1.Rc1+?
      • 1...Kd5
        • 2.Sf4#
        • 2.Rxc5#
      • 1...Kb4!
    • 1.Rd1?
      • 1...Kb4
        • 2.Rxd4#
      • 1...Kd5
        • 2.Se3#
      • 1...b4
        • 2.Bg8#
      • 1...d3!
    • 1.Rh5?
      • 1...d3
        • 2.Rf4#
      • 1...b4
        • 2.Rc1#
        • 2.Rxc5#
      • 1...Kb4!
  • Keys
    • 1.Rf4!
      • 1...Kb4
        • 2.Rxd4#
      • 1...Kd5
        • 2.Bg8#
      • 1...b4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(c);OGATEB::R(A)
        • P(d);SBLOCK::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(e)
    • Try
      • R(A);CHECK
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(e)
    • Try
      • R(A);
      • Vars
        • K(b);P-FLIGHT,P_SPINP(e)::R(A),XP(c)
        • K(b);P_SPINP(c),S_FLIGHT::S(C)
        • P(d);SBLOCK::B(H)
      • Refutation
        • P(c);
    • Try
      • R(G);
      • Vars
        • P(c);OGATEB::R(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(e)
  • Actual
    • R(A);P_PINP(c)
    • Vars
      • K(b);P-FLIGHT::R(A),XP(c)
      • K(b);N_SPINP(c),S_FLIGHT::B(H)
      • P(d);SBLOCK::S(C)
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