MESON Chess Problem Database

Problem Display
PID: 109643 (4k3/2K5/8/3Bp2b/2R5/B7/8/8 w - - 0 1)

Vishkov, Anatoly Ivanovich

Za Ogneypori, 1989

4k3/2K5/8/3Bp2b/2R5/B7/8/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf7
      • 2.Bc6#
    • 1...e4
      • 2.Rxe4#
  • Tries
    • 1.Be4?
      • 1...Bd1
        • 2.Bg6#
      • 1...Be2
        • 2.Bg6#
      • 1...Bf3
        • 2.Bg6#
      • 1...Bg4
        • 2.Bg6#
      • 1...Bg6
        • 2.Bxg6#
      • 1...Bf7
        • 2.Bc6#
      • 1...Kf7!
    • 1.Re4?
      • threat
        • 2.Rxe5#
      • 1...Bf7
        • 2.Bc6#
      • 1...Bg4!
    • 1.Rf4?
      • threat
        • 2.Bc6#
        • 2.Rf8#
      • 1...Bf3
        • 2.Bf7#
        • 2.Rf8#
      • 1...Bg4
        • 2.Bf7#
        • 2.Rf8#
      • 1...Bf7
        • 2.Bc6#
        • 2.Bxf7#
      • 1...exf4!
  • Keys
    • 1.Rh4!
      • 1...Bd1
        • 2.Rh8#
      • 1...Be2
        • 2.Rh8#
      • 1...Bf3
        • 2.Rh8#
      • 1...Bg4
        • 2.Rh8#
      • 1...Bg6
        • 2.Rh8#
      • 1...Bf7
        • 2.Bc6#
      • 1...e4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::B(C)
    • P(a);OGATEB::R(B),XP(a)
  • Tries
    • Try
      • B(C);
      • Vars
        • B(b);N_GUARD::B(C)
        • B(b);N_GUARD::B(C),XB(b)
        • B(b);SBLOCK::B(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(B);P_PINP(a)
      • Threat
        • R(B),XP(a)
      • Vars
        • B(b);SBLOCK::B(C)
      • Refutation
        • B(b);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);XR(B)
  • Actual
    • R(B);
    • Vars
      • B(b);OGATE::R(B)
      • B(b);SBLOCK::B(C)
      • P(a);OGATEB::R(B),XP(a)
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