MESON Chess Problem Database

Problem Display
PID: 164866 (8/8/Q7/4k2P/7R/5P2/2N4K/8 w - - 0 1)

Melnichuk, Aleksandr Nikolaevich

Shmatov, Vladimir Afanasievich

Sachmatija, 2008

8/8/Q7/4k2P/7R/5P2/2N4K/8

#2

6 + 1

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Ra4?
      • 1...Kd5
        • 2.Ra5#
      • 1...Kf5!
    • 1.Re4+?
      • 1...Kf5
        • 2.Qg6#
      • 1...Kd5!
    • 1.Rg4?
      • 1...Kd5
        • 2.Rg5#
      • 1...Kf5!
    • 1.h6?
      • 1...Kd5
        • 2.Rh5#
      • 1...Kf5!
  • Keys
    • 1.Rf4!
      • 1...Kxf4
        • 2.Qf6#
      • 1...Kd5
        • 2.Rf5#

Anticipated by 190096(1913), 234968(2008)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(E);
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(a);S_FLIGHT,XR(D)::QAR2(F)
      • K(a);P-FLIGHT::R(D)
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