MESON Chess Problem Database

Problem Display
PID: 200543 (4b3/7P/4N2N/7k/8/3R4/2R5/1K6 w - - 0 1)

Ouellet, Charles

StrateGems, 2019

4b3/7P/4N2N/7k/8/3R4/2R5/1K6

#2

6 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kh4
      • 2.Rh2#
    • 1...Bg6
      • 2.Rh2#
      • 2.Rh3#
  • Tries
    • 1.Rg3?
      • threat
        • 2.Rh2#
      • 1...Kxh6
        • 2.h8Q#
        • 2.h8R#
      • 1...Bg6
        • 2.Rh3#
      • 1...Kh4!
    • 1.h8S?
      • threat
        • 2.Rh2#
        • 2.Rh3#
      • 1...Kh4
        • 2.Rh2#
      • 1...Kxh6!
  • Keys
    • 1.Rg2!
      • threat
        • 2.Rh3#
      • 1...Kh4
        • 2.Rh2#
      • 1...Kxh6
        • 2.h8Q#
        • 2.h8R#
      • 1...Bg6
        • 2.Rh2#

This is after

After Alex Casa.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(B)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT,XS(E)::P=Q
        • B(b);P_PINR(B),SBLOCK::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);P-FLIGHT,XS(E)
  • Actual
    • R(B);
    • Threat
      • R(C)
    • Vars
      • K(a);P-FLIGHT::R(B)
      • K(a);P-FLIGHT,XS(E)::P=Q
      • B(b);P_PINR(C),SBLOCK::R(B)
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