MESON Chess Problem Database

Problem Display
PID: 3156 (8/1b1R4/3PN2R/2r1k1p1/1N2n3/7B/1r1PQ1K1/B5b1 w - - 0 1)

Hartong, Jan

Source?, 1928

8/1b1R4/3PN2R/2r1k1p1/1N2n3/7B/1r1PQ1K1/B5b1

#2

10 + 7

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.d4#
    • 1...Bd5
      • 2.Sd3#
  • Tries
    • 1.Bxb2+?
      • 1...Bd4
        • 2.Bxd4#
      • 1...Rc3!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qf5#
      • 1...Sxd2
        • 2.Sd3#
      • 1...Sxd6
        • 2.Sd3#
      • 1...Sf2
        • 2.d4#
      • 1...Sc3
        • 2.Sd3#
      • 1...Sg3
        • 2.Sd3#
      • 1...Sf6
        • 2.Sd3#
      • 1...g4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::P(B)
    • B(g);SBLOCK::S(F)
  • Tries
    • Try
      • B(A);CHECK,XR(b)
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::B(A),XB(a)
      • Refutation
        • R(d);P_SPINR(d)
  • Actual
    • Q(C);N_PINS(c),P_SPINP(B)
    • Threat
      • QAR1(C)
    • Vars
      • S(c);P_PINQ(C),XP(B)::S(F)
      • S(c);P_PINQ(C),XP(G)::S(F)
      • S(c);N_PINP(B),P_PINQ(C)::P(B)
      • S(c);N_SPINR(b),P_PINQ(C)::S(F)
      • S(c);P_PINQ(C)::S(F)
      • P(f);N_GUARD::QAB1(C)
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