MESON Chess Problem Database

Problem Display
PID: 262159 (4B3/1pp5/qPpkNK2/8/4P3/2Rp4/8/8 w - - 0 1)

Lipton, Michael

The Problemist, 1954

4B3/1pp5/qPpkNK2/8/4P3/2Rp4/8/8

#2

6 + 6

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qa7
      • 2.Rxd3#
    • 1...Qa8
      • 2.Rxd3#
  • Tries
    • 1.Sd8?
      • threat
        • 2.Sf7#
      • 1...Qc4
        • 2.Sxb7#
      • 1...Qa2
        • 2.Sxb7#
      • 1...cxb6!
  • Keys
    • 1.bxc7!
      • threat
        • 2.c8S#
      • 1...Qa8
        • 2.Rxd3#
      • 1...b5
        • 2.Rxd3#
      • 1...b6
        • 2.Rxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_GUARD::R(A),XP(a)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • Q(b);N_GUARD::S(D),XP(e)
      • Refutation
        • P(f);XP(C)
  • Actual
    • P(C);XP(f)
    • Threat
      • P=S
    • Vars
      • Q(b);N_GUARD::R(A),XP(a)
      • P(e);S_CUTQ(b)::R(A),XP(a)
      • P(e);N_GUARD,S_CUTQ(b)::R1(A),XP(c)
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