MESON Chess Problem Database

Problem Display
PID: 172348 (r3k3/1R6/1P2K3/4B3/8/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Aktsent, 1997

r3k3/1R6/1P2K3/4B3/8/8/8/8

#2

4 + 2

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rb8#
    • 1...Ra2
      • 2.Rb8#
    • 1...Ra3
      • 2.Rb8#
    • 1...Ra4
      • 2.Rb8#
    • 1...Ra5
      • 2.Rb8#
    • 1...Ra6
      • 2.Rb8#
    • 1...Ra7
      • 2.Rb8#
    • 1...Rb8
      • 2.Rxb8#
  • Tries
    • 1.Rg7?
      • threat
        • 2.Rg8#
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8!
  • Keys
    • 1.Rh7!
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...Kf8
        • 2.Rh8#

Anticipated by 46640(1962)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • R(a);N_GUARD::R(D)
    • R(a);N_GUARD,P_PINP(B)::R(D)
    • R(a);N_GUARD::R(D),XR(a)
  • Tries
    • Try
      • R(D);
      • Threat
        • R(D)
      • Vars
        • K(b);P-FLIGHT::R(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(D);
    • Threat
      • R(D)
    • Vars
      • K(b);P-FLIGHT::R(D)
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