MESON Chess Problem Database

Problem Display
PID: 271037 (K7/5B2/4N3/4pnB1/1RNpk3/3n1b2/Q7/2b5 w - - 0 1)

Lin, Tien Ling

The Problemist, 1956

K7/5B2/4N3/4pnB1/1RNpk3/3n1b2/Q7/2b5

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Sd2#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Ba3
      • 2.Sd2#
    • 1...Bg2
      • 2.Qxg2#
    • 1...Se1
      • 2.Sc5#
    • 1...Sb2
      • 2.Sc5#
    • 1...Sf2
      • 2.Sc5#
    • 1...Sxb4
      • 2.Sc5#
    • 1...Sf4
      • 2.Sc5#
    • 1...Sc5
      • 2.Sxc5#
    • 1...Se3
      • 2.Sd6#
    • 1...Sg3
      • 2.Sd6#
    • 1...Sh4
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sh6
      • 2.Sd6#
    • 1...Se7
      • 2.Sd6#
    • 1...Sg7
      • 2.Sd6#
  • Keys
    • 1.Kb8!
      • threat
        • 2.Qa8#
      • 1...Kd5
        • 2.Qa8#
      • 1...Sxb4
        • 2.Sc5#
      • 1...Se1
        • 2.Sc5#
      • 1...Sb2
        • 2.Sc5#
      • 1...Sf2
        • 2.Sc5#
      • 1...Sf4
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Se3
        • 2.Sd6#
      • 1...Sg3
        • 2.Sd6#
      • 1...Sh4
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sh6
        • 2.Sd6#
      • 1...Se7
        • 2.Sd6#
      • 1...Sg7
        • 2.Sd6#
      • 1...Ba3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::S(C)
    • B(a);N_GUARD::S(C),XB(a)
    • B(c);OGATEB::QAB(A),XB(c)
    • S(b);N_GUARD::S(E)
    • S(b);N_GUARD,XR(B)::S(E)
    • S(b);N_GUARD::S(E),XS(b)
    • S(g);N_GUARD::S(C)
    • S(g);N_GUARD::S(C),XS(g)
  • Actual
    • K(G);P-FLIGHT
    • Threat
      • QAB(A)
    • Vars
      • K(e);S_FLIGHT::QAB(A)
      • S(b);N_GUARD,XR(B)::S(E)
      • S(b);N_GUARD::S(E)
      • S(b);N_GUARD::S(E),XS(b)
      • S(g);N_GUARD::S(C)
      • S(g);N_GUARD::S(C),XS(g)
      • B(a);N_GUARD::S(C)
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