MESON Chess Problem Database

Problem Display
PID: 249158 (1q6/2b3R1/b7/2n2kNN/6R1/3n4/4B3/B2Q1K2 w - - 0 1)

de Blasio, Francis JC

South African Chess Magazine, 1948

1q6/2b3R1/b7/2n2kNN/6R1/3n4/4B3/B2Q1K2

#2

8 + 6

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Sg3#
    • 1...Se5
      • 2.Rf4#
  • Keys
    • 1.Rf4+!
      • 1...Bxf4
        • 2.Bg4#
      • 1...Sxf4
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(a);P_PINB(D),S_CUTB(e)::S(G)
    • S(a);N_GUARD,P_PINB(D),S_CUTB(e)::R1(E)
  • Actual
    • R(E);CHECK
    • Vars
      • B(e);XR(E)::B(D)
      • S(a);P_PINB(D),SBLOCK,XR(E)::S(G)
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Developed and maintained by Brian Stephenson.
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