MESON Chess Problem Database

Problem Display
PID: 97398 (8/8/8/P1P1B3/1k1NK3/1P6/4B3/1R6 w - - 0 1)

Armengol Burgues, Francisco

Problemas, 1977

8/8/8/P1P1B3/1k1NK3/1P6/4B3/1R6

#2

8 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa5
      • 2.Sc6#
    • 1...Kxc5
      • 2.b4#
  • Tries
    • 1.Sc2+?
      • 1...Kxa5
        • 2.Bc3#
        • 2.Bc7#
        • 2.Ra1#
      • 1...Kxc5!
    • 1.Sc6+?
      • 1...Kxc5
        • 2.Rc1#
      • 1...Ka3!
    • 1.Se6?
      • 1...Kxa5
        • 2.Bc3#
      • 1...Ka3!
    • 1.Bg3?
      • 1...Kc3
        • 2.Be1#
      • 1...Kxa5
        • 2.Sc6#
        • 2.Be1#
      • 1...Kxc5
        • 2.b4#
      • 1...Ka3!
    • 1.Rc1?
      • 1...Kxa5
        • 2.Sc6#
      • 1...Ka3!
  • Keys
    • 1.Rb2!
      • 1...Ka3
        • 2.Sc2#
      • 1...Kc3
        • 2.Sc6#
      • 1...Kxa5
        • 2.Sc6#
      • 1...Kxc5
        • 2.b4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT,XP(F)::S(D)
    • K(a);OGATE,S_FLIGHT,XP(G)::P(C)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(G)::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT,XP(F)::B(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(H);
      • Vars
        • K(a);S_FLIGHT::B(H)
        • K(a);OGATE,S_FLIGHT,XP(G)::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT,XP(F)::S(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT::S(D)
      • K(a);S_FLIGHT::B(H)+S(D)
      • K(a);S_FLIGHT,XP(F)::S(D)
      • K(a);OGATE,S_FLIGHT,XP(G)::P(C)
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