MESON Chess Problem Database

Problem Display
PID: 260178 (8/8/5Q2/2p4k/8/b5K1/4P3/1r1B4 w - - 0 1)

Lipton, Michael

The Problemist, 1955

8/8/5Q2/2p4k/8/b5K1/4P3/1r1B4

#2

4 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3+
      • 2.e3#
    • 1...Rb4
      • 2.e4#
    • 1...Rb5
      • 2.e3#
      • 2.e4#
    • 1...Rb6
      • 2.e3#
      • 2.e4#
    • 1...Rb7
      • 2.e3#
      • 2.e4#
    • 1...Rb8
      • 2.e3#
      • 2.e4#
    • 1...Bc1
      • 2.e3#
      • 2.e4#
  • Keys
    • 1.Kf4!
      • threat
        • 2.Qg5#
      • 1...Rb4+
        • 2.e4#
      • 1...Bc1+
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(a);CHECK,N_GUARD::B(A)+P(B)
    • R(a);N_GUARD::B(A)+P(B)
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • QAR1(D)
    • Vars
      • R(a);CHECK,N_GUARD::B(A)+P(B)
      • B(b);CHECK,S_CUTR(a)::B(A)+P(B)
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