MESON Chess Problem Database

Problem Display
PID: 17731 (3nb3/2pBpr2/2Pkqb1R/5p1Q/2pPp3/4N1N1/5K2/8 w - - 0 1)

Gooderson, Arthur R

Bonavia-Hunt Research Pamphlet 05, 1949

3nb3/2pBpr2/2Pkqb1R/5p1Q/2pPp3/4N1N1/5K2/8

#2

8 + 11

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qc5#
  • Tries
    • 1.Sxe4+?
      • 1...fxe4
        • 2.Qc5#
      • 1...Qxe4!
  • Keys
    • 1.Qxf5!
      • threat
        • 2.Qc5#
      • 1...Qxf5+
        • 2.Sgxf5#
      • 1...Qxd7
        • 2.Qd5#
      • 1...Bxd4
        • 2.Sxe4#
      • 1...Sxc6
        • 2.Qxe6#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bh4
        • 2.Sxc4#
      • 1...Be5
        • 2.Sxe4#
      • 1...Bg5
        • 2.Sxc4#
        • 2.Sxe4#
      • 1...Bg7
        • 2.Sxc4#
        • 2.Sxe4#
      • 1...Bh8
        • 2.Sxc4#
        • 2.Sxe4#
      • 1...Sb7
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATE::QAB1(E)
  • Tries
    • Try
      • S(C);CHECK,XP(b)
      • Vars
        • P(c);OGATE,XS(C)::QAB1(E)
      • Refutation
        • Q(e);P_SPINB(f),XS(C)
  • Actual
    • Q(E);XP(c)
    • Threat
      • QAB1(E)
    • Vars
      • Q(e);CHECK,P_SPINB(f),XQ(E)::S(C),XQ(e)
      • Q(e);N_GUARD,P_SPINB(f),XB(H)::QAR1(E)
      • B(f);P_PINQ(E),P_PINS(B),P_SPINQ(e),XP(D)::S(C),XP(b)
      • S(j);N_GUARD,XP(F)::QAR1(E),XQ(e)
      • Q(e);N_GUARD,P_SPINB(f)::QAR1(E),XQ(e)
      • Q(e);N_GUARD,P_SPINB(f)::QAB1(E),XQ(e)
      • B(f);P_PINQ(E),P_PINS(C),P_SPINQ(e)::S(B),XP(a)
      • B(f);P_PINQ(E),P_SPINQ(e)::S(C),XP(b)
      • S(j);N_GUARD::QAR1(E),XQ(e)
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