MESON Chess Problem Database

Problem Display
PID: 180665 (4k3/2KR1R2/2p1r3/6P1/8/8/8/8 w - - 0 1)

Lincoln, Robert A

StrateGems, 2017

4k3/2KR1R2/2p1r3/6P1/8/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Rde7#
    • 1...Rf6
      • 2.Rde7#
    • 1...Rg6
      • 2.Rde7#
    • 1...Rh6
      • 2.Rde7#
    • 1...Re7
      • 2.Rdxe7#
  • Tries
    • 1.Rh7?
      • threat
        • 2.Rd8#
        • 2.Rh8#
      • 1...Kf8
        • 2.Rh8#
      • 1...Rd6
        • 2.Rh8#
      • 1...Rf6
        • 2.Rd8#
      • 1...Rg6
        • 2.Rd8#
      • 1...Rh6
        • 2.Rd8#
      • 1...Re7!
  • Keys
    • 1.g6!
      • threat
        • 2.Rd8#
      • 1...Rxg6
        • 2.Rde7#
      • 1...Rd6
        • 2.Rde7#
      • 1...Re7
        • 2.Rdxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD::R1(C)
    • R(b);N_GUARD,P_PINR(C)::R1(C),XR(b)
  • Tries
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::R(D)
        • R(b);::R(D)
        • R(b);::R1(C)
      • Refutation
        • R(b);P_PINR(C)
  • Actual
    • P(A);
    • Threat
      • R1(C)
    • Vars
      • R(b);N_GUARD,XP(A)::R1(C)
      • R(b);N_GUARD::R1(C)
      • R(b);N_GUARD,P_PINR(C)::R1(C),XR(b)
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