MESON Chess Problem Database

Problem Display
PID: 42624 (6Q1/2q1r3/8/1N1Pbkp1/2R3N1/3P3P/2B1PPn1/7K w - - 0 1)

Fenner, A Jack

3rd Prize, BCF 037. Ty., 1940-1941

6Q1/2q1r3/8/1N1Pbkp1/2R3N1/3P3P/2B1PPn1/7K

#2

11 + 6

14869 British Championship Solving Ty. 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Qxe6#
    • 1...Rd7
      • 2.Qe6#
    • 1...Rg7
      • 2.Qe6#
    • 1...Rh7
      • 2.Qe6#
    • 1...Bf4
      • 2.Sd4#
    • 1...Bg7
      • 2.Qh7#
    • 1...Sf4
      • 2.e4#
  • Tries
    • 1.Qf7+?
      • 1...Bf6
        • 2.Qxf6#
      • 1...Rxf7!
  • Keys
    • 1.f4!
      • threat
        • 2.Qxg5#
      • 1...Bxf4
        • 2.Sd4#
      • 1...Sxf4
        • 2.e4#
      • 1...gxf4
        • 2.d4#
      • 1...Rg7
        • 2.Qe6#
      • 1...Bg7
        • 2.Qh7#
      • 1...Bf6
        • 2.Sh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD::QAB1(K),XR(f)
    • R(f);N_GUARD::QAB1(K)
    • R(f);N_GUARD,P_PINP(F)::QAB1(K)
    • B(b);N_GUARD,SBLOCK::S(I)
    • B(b);S_CUTR(f)::QAB(K)
    • S(a);SBLOCK::P(C)
  • Tries
    • Try
      • Q(K);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAR1(K),XB(b)
      • Refutation
        • R(f);XQ(K)
  • Actual
    • P(D);
    • Threat
      • QAR1(K),XP(d)
    • Vars
      • B(b);N_GUARD,SBLOCK,XP(D)::S(I)
      • S(a);SBLOCK,XP(D)::P(C)
      • P(d);SBLOCK,XP(D)::B(B)+P(E)
      • R(f);N_GUARD::QAB1(K)
      • B(b);S_CUTR(f)::QAB(K)
      • B(b);SBLOCK::S(H)
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