MESON Chess Problem Database

Problem Display
PID: 122131 (8/3p4/1B6/1p5B/k7/8/1K6/3R4 w - - 0 1)

Olympiev, Bronislav

Moldavian Ty., 1981

8/3p4/1B6/1p5B/k7/8/1K6/3R4

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kb4
      • 2.Rd4#
  • Tries
    • 1.Kc3?
      • threat
        • 2.Ra1#
      • 1...Ka3
        • 2.Ra1#
      • 1...b4+!
    • 1.Bc5?
      • threat
        • 2.Ra1#
      • 1...Ka5
        • 2.Ra1#
      • 1...b4!
    • 1.Rd5?
      • 1...Kb4
        • 2.Rd4#
      • 1...b4
        • 2.Ra5#
      • 1...d6!
    • 1.Rd6?
      • 1...Kb4
        • 2.Rd4#
      • 1...b4!
    • 1.Rxd7?
      • 1...Kb4
        • 2.Rd4#
      • 1...b4!
  • Keys
    • 1.Be8!
      • 1...Kb4
        • 2.Rd4#
      • 1...d5
        • 2.Rd4#
      • 1...b4
        • 2.Bxd7#
      • 1...d6
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • R(A)
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • P(b);CHECK
    • Try
      • B(D);
      • Threat
        • R(A)
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
        • P(b);OGATE,SBLOCK::R1(A)
      • Refutation
        • P(c);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • P(b);
    • Try
      • R(A);XP(c)
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • P(b);
  • Actual
    • B(C);
    • Vars
      • K(a);P-FLIGHT::R(A)
      • P(c);P_SPINP(b)::R(A)
      • P(b);OGATEB,P_SPINP(c),SBLOCK::B(C),XP(c)
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