MESON Chess Problem Database

Problem Display
PID: 5053 (8/3bp3/3R3N/K2Pk1N1/8/8/3Q4/8 w - - 0 1)

Moon, James Frank

Hampstead Express, 1898

8/3bp3/3R3N/K2Pk1N1/8/8/3Q4/8

#2

6 + 3

3360 Simple Two-move Themes 1924
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Re6#
    • 1...Bb5
      • 2.Re6#
    • 1...Bf5
      • 2.Shf7#
    • 1...Bc6
      • 2.Re6#
    • 1...Be6
      • 2.Rxe6#
    • 1...Be8
      • 2.Re6#
  • Keys
    • 1.Se6!
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qe2#
      • 1...Kxd6
        • 2.Sf7#
      • 1...Kf6
        • 2.Qg5#
      • 1...Bxe6
        • 2.Rxe6#
      • 1...exd6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • B(b);N_GUARD::R1(E)
    • B(b);SBLOCK::S(F)
    • B(b);N_GUARD::R1(E),XB(b)
  • Actual
    • S(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • K(a);S_FLIGHT,XR(E)::S(F)
      • K(a);S_FLIGHT::QAB1(A)
      • B(b);OGATE,XS(D)::R1(E),XB(b)
      • P(c);SBLOCK,XR(E)::QAB1(A)
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