MESON Chess Problem Database

Problem Display
PID: 9865 (8/2p2p2/2QP1K2/8/1p1k2Nn/n3p3/5N2/4B3 w - - 0 1)

Gooderson, Arthur R

2nd Prize, Die Schwalbe, 1960

8/2p2p2/2QP1K2/8/1p1k2Nn/n3p3/5N2/4B3

#2

6 + 7

3749 FIDE Album (1959-1961) 1966
3174 The Two-move Chess Problem Tradition and Development 1966
3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...b3
      • 2.Bc3#
  • Tries
    • 1.Se5?
      • 1...exf2
        • 2.Bxf2#
      • 1...cxd6
        • 2.Qxd6#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sc2
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb5
        • 2.Qc4#
      • 1...Sg2
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Sf5
        • 2.Sf3#
      • 1...Sg6
        • 2.Sf3#
      • 1...b3
        • 2.Bc3#
      • 1...e2!
    • 1.Bxb4?
      • threat
        • 2.Bc3#
        • 2.Qe4#
        • 2.Qc5#
      • 1...cxd6
        • 2.Bc3#
        • 2.Qe4#
      • 1...Sb1
        • 2.Qe4#
        • 2.Qc5#
      • 1...Sc4
        • 2.Qe4#
        • 2.Qc5#
      • 1...Sb5
        • 2.Qe4#
        • 2.Qc5#
      • 1...exf2!
  • Keys
    • 1.Sxe3!
      • 1...Kxe3
        • 2.Qe4#
      • 1...cxd6
        • 2.Qb6#
      • 1...Sb1
        • 2.Sc2#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Sc4
        • 2.Sc2#
      • 1...Sb5
        • 2.Sc2#
      • 1...Sg2
        • 2.Sf5#
      • 1...Sf3
        • 2.Sf5#
      • 1...Sf5
        • 2.Sxf5#
      • 1...Sg6
        • 2.Sf5#
      • 1...b3
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::B(A)
  • Tries
    • Try
      • S(C);
      • Vars
        • P(b);OGATE,XS(B)::B(A),XP(b)
        • P(f);OGATE,XP(E)::QAR2(D),XP(f)
        • S(a);N_GUARD::QAR1(D)
        • S(a);N_GUARD::QAR1(D),XS(a)
        • S(e);N_GUARD::S(C)
        • S(e);N_GUARD::S(C),XS(e)
        • P(c);N_GUARD::B(A)
      • Refutation
        • P(b);
    • Try
      • B(A);XP(c)
      • Threat
        • DUALS(3)
      • Refutation
        • P(b);XS(B)
  • Actual
    • S(C);XP(b)
    • Vars
      • K(d);S_FLIGHT,XS(C)::QAR1(D)
      • P(f);N_GUARD,XP(E)::QAB(D)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(a)
      • S(e);N_GUARD::S(C)
      • S(e);N_GUARD::S(C),XS(e)
      • P(c);N_GUARD::QAB1(D)
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