MESON Chess Problem Database

Problem Display
PID: 169334 (8/4BN2/r5P1/r3RB1k/1P6/1bR4K/7N/8 w - - 0 1)

Shanshin, Valery Yurevich

5th Comm., SuperProblem 182. TT, 2017

8/4BN2/r5P1/r3RB1k/1P6/1bR4K/7N/8

#2

9 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bb1#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
    • 1...Ra2
      • 2.Bb1#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
    • 1...Ra3
      • 2.Bb1#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
    • 1...Ra4
      • 2.Bb1#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
    • 1...Rxg6
      • 2.Bg4#
    • 1...Bd5
      • 2.Bb1#
      • 2.Bc2#
      • 2.Bd3#
      • 2.Be4#
  • Tries
    • 1.Sf1?
      • threat
        • 2.Sg3#
      • 1...Rxg6
        • 2.Bg4#
      • 1...Bxf7!
    • 1.Rg3?
      • threat
        • 2.Rg5#
      • 1...Rxg6
        • 2.Bg4#
        • 2.Bxg6#
      • 1...Bxf7!
    • 1.Rc8?
      • threat
        • 2.Rh8#
      • 1...Rxg6
        • 2.Bg4#
      • 1...Ra8!
  • Keys
    • 1.Kg2!
      • threat
        • 2.Rh3#
      • 1...Ra2+
        • 2.Bc2#
      • 1...Rxg6+
        • 2.Bg4#
      • 1...Bd5+
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(d);SBLOCK,XP(G)::R(E)+B(F),DCHECK
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • R(d);SBLOCK,XP(G)::R(E)+B(F),DCHECK
      • Refutation
        • B(a);XS(I)
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Refutation
        • B(a);XS(I)
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • R(d);SBLOCK,XP(G)::R(E)+B(F),DCHECK
      • Refutation
        • R(d);
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • R(B)
    • Vars
      • R(b);CHECK,N_GUARD::R(E)+B(F)
      • R(d);CHECK,SBLOCK,XP(G)::R(E)+B(F),DCHECK
      • B(a);CHECK,S_CUTR(b)::R(E)+B(F)
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