MESON Chess Problem Database

Problem Display
PID: 169966 (4B3/8/7r/5R2/6p1/7k/5B2/7K w - - 0 1)

Lincoln, Robert A

StrateGems, 2017

4B3/8/7r/5R2/6p1/7k/5B2/7K

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.Rxh5#
    • 1...Ra6
      • 2.Rh5#
    • 1...Rb6
      • 2.Rh5#
    • 1...Rc6
      • 2.Rh5#
    • 1...Rd6
      • 2.Rh5#
    • 1...Re6
      • 2.Rh5#
    • 1...Rf6
      • 2.Rh5#
    • 1...Rg6
      • 2.Rh5#
  • Tries
    • 1.Bc6?
      • threat
        • 2.Bg2#
      • 1...Rxc6
        • 2.Rh5#
      • 1...g3!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Rf3#
      • 1...g3
        • 2.Rh5#
      • 1...Re6
        • 2.Rh5#
      • 1...Rf6
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD::R(C),XR(c)
    • R(c);N_GUARD::R(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • B(D)
      • Vars
        • R(c);N_GUARD,XB(D)::R(C)
      • Refutation
        • P(b);
  • Actual
    • B(D);
    • Threat
      • R(C)
    • Vars
      • P(b);::B(D)+R(C),DCHECK
      • R(c);N_GUARD::R(C)
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