MESON Chess Problem Database

Problem Display
PID: 751 (5N1b/1P6/KNp3R1/B1k1n2R/1p1n2q1/1p5b/1Q2p3/6rB w - - 0 1)

Gooderson, Arthur R

Comm., British Chess Magazine, 1948

5N1b/1P6/KNp3R1/B1k1n2R/1p1n2q1/1p5b/1Q2p3/6rB

#2

9 + 11

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Rxc6#
    • 1...Sb5
      • 2.Rxc6#
  • Tries
    • 1.Qxd4+?
      • 1...Qxd4
        • 2.Rxc6#
      • 1...Kxd4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Bxb4#
        • 2.Qxb4#
      • 1...e1Q
        • 2.Bxb4#
      • 1...e1B
        • 2.Bxb4#
      • 1...Ra1
        • 2.Qxb4#
      • 1...Sc2
        • 2.Rxc6#
        • 2.Qd6#
      • 1...Sf3
        • 2.Qd6#
      • 1...Sb5
        • 2.Rxc6#
      • 1...Sf5
        • 2.Se6#
      • 1...Se6
        • 2.Sfd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • S(f);N_GUARD::R1(G),XP(j)
  • Tries
    • Try
      • Q(B);CHECK,XS(f)
      • Vars
        • Q(g);SBLOCK,XQ(B)::R1(G),XP(j)
      • Refutation
        • K(h);N_SPINS(i),S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);::B(C),XP(e)
      • R(a);P_PINB(C)::QAB1(B),XP(e)
      • S(f);OGATE::QAB1(B)
      • S(f);N_GUARD::R1(G),XP(j)
      • S(f);N_GUARD,N_SPINS(i),S_CUTQ(g)::S(I)
      • S(f);S_CUTQ(g)::S(I)
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