MESON Chess Problem Database

Problem Display
PID: 22191 (rN2k3/Pbp5/2p1BnN1/2K5/4p2B/8/3R1Rp1/8 w q - 0 1)

Brown, David Leo

Boston Globe, 1971

rN2k3/Pbp5/2p1BnN1/2K5/4p2B/8/3R1Rp1/8

#2

8 + 8

17108 White and Black From Brown (David L Brown) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Bd7#
      • 2.Bf7#
      • 2.Rd8#
      • 2.Rf8#
    • 1...Sd5
      • 2.Bd7#
      • 2.Bf7#
      • 2.Rf8#
    • 1...Sh5
      • 2.Bd7#
      • 2.Bf7#
      • 2.Rd8#
      • 2.Rf8#
    • 1...Sd7+
      • 2.Bxd7#
    • 1...Sh7
      • 2.Bd7#
      • 2.Bf7#
      • 2.Rd8#
    • 1...Sg8
      • 2.Bd7#
      • 2.Bf7#
      • 2.Rd8#
      • 2.Rf8#
  • Tries
    • 1.Rd7?
      • threat
        • 2.Bf7#
      • 1...Sxd7+
        • 2.Bxd7#
      • 1...Rxb8!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Sxf6#
      • 1...Sxd7+
        • 2.Bxd7#
      • 1...Kd8
        • 2.Sxf6#
      • 1...0-0-0
        • 2.Se7#
        • 2.Sb6#
      • 1...Sg4
        • 2.Bf7#
        • 2.Rf8#
      • 1...Sd5
        • 2.Rf8#
      • 1...Sh5
        • 2.Bf7#
        • 2.Rf8#
      • 1...Sh7
        • 2.Bf7#
      • 1...Sg8
        • 2.Bf7#
        • 2.Rf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(d);CHECK,N_GUARD::B(E),XS(d)
  • Tries
    • Try
      • R(A);
      • Threat
        • B(E)
      • Vars
        • S(d);CHECK,OGATE,XR(A)::B(E),XS(d)
      • Refutation
        • R(g);XS(H)
  • Actual
    • S(H);
    • Threat
      • S(H),XS(d)
    • Vars
      • S(d);CHECK,OGATE,XS(H)::B(E),XS(d)
      • K(h);P-FLIGHT,P_SPINS(d)::R(A)+S(H),XS(d)
      • S(d);OGATE::R1(B)
      • S(d);::B(E)
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