MESON Chess Problem Database

Problem Display
PID: 45404 (7n/1p1pQ1p1/2b2prB/4PkNB/1R5P/5NR1/5nK1/8 w - - 0 1)

Nicklin, John Joseph

Recomm., BCF 048. Ty., 1944-1945

7n/1p1pQ1p1/2b2prB/4PkNB/1R5P/5NR1/5nK1/8

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf3+
      • 2.Rxf3#
    • 1...Sd1
      • 2.Bg4#
    • 1...Sh1
      • 2.Bg4#
    • 1...Sd3
      • 2.Bg4#
    • 1...Sh3
      • 2.Bg4#
    • 1...Sg4
      • 2.Bxg4#
    • 1...fxe5
      • 2.Qxe5#
    • 1...d5
      • 2.Qe6#
    • 1...d6
      • 2.Qe6#
  • Keys
    • 1.Se4!
      • threat
        • 2.Sd6#
      • 1...Rxg3+
        • 2.Sxg3#
      • 1...Bxe4
        • 2.Qxd7#
      • 1...Sxe4
        • 2.Sd4#
      • 1...fxe5
        • 2.Qxe5#
      • 1...Sf7
        • 2.Bxg6#
      • 1...d6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • B(c);CHECK,OGATE,XS(B)::R(C),XB(c)
    • S(a);N_GUARD::B(H)
    • S(a);N_GUARD::B(H),XS(a)
    • P(d);OGATE,XP(F)::QAR1(J),XP(d)
    • P(g);N_GUARD,N_PINS(B)::QAB1(J)
    • P(g);N_GUARD::QAB1(J)
  • Actual
    • S(G);N_SPINS(B),P_SPINR(C)
    • Threat
      • S(G)
    • Vars
      • R(e);CHECK,XR(C)::S(G),XR(e)
      • B(c);N_GUARD,P_PINS(B),XS(G)::QAB(J),XP(g)
      • S(a);SBLOCK,XS(G)::S(B)
      • P(d);OGATE,XP(F)::QAR1(J),XP(d)
      • S(i);N_GUARD::B(H),XR(e)
      • P(g);::S(G),XP(g)
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Developed and maintained by Brian Stephenson.
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