MESON Chess Problem Database

Problem Display
PID: 16603 (K1Q4B/3p1p2/2N2np1/R1n2kN1/6pP/2rr1bP1/8/1B3R2 w - - 0 1)

Gooderson, Arthur R

The Problemist, 1941

K1Q4B/3p1p2/2N2np1/R1n2kN1/6pP/2rr1bP1/8/1B3R2

#2

10 + 10

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Se7#
    • 1...Sd5
      • 2.Sd4#
    • 1...Sh5
      • 2.Qxd7#
    • 1...Sh7
      • 2.Qxd7#
    • 1...Se8
      • 2.Qxd7#
    • 1...Sg8
      • 2.Qxd7#
  • Tries
    • 1.Bxd3+?
      • 1...Se4
        • 2.Sd4#
        • 2.Se7#
        • 2.Bxe4#
        • 2.Qxd7#
      • 1...Rxd3!
    • 1.Rxc5+?
      • 1...Sd5
        • 2.Sd4#
        • 2.Se7#
        • 2.Rxd5#
        • 2.Qxd7#
      • 1...Rxc5!
    • 1.Qc7?
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...dxc6
        • 2.Qf4#
      • 1...Rc4
        • 2.Qe5#
      • 1...Sd5
        • 2.Sd4#
        • 2.Qe5#
      • 1...Sh5
        • 2.Qe5#
        • 2.Qxd7#
      • 1...d6!
    • 1.Qb8?
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...dxc6
        • 2.Qf4#
      • 1...Rc4
        • 2.Qe5#
      • 1...Sd5
        • 2.Sd4#
        • 2.Qe5#
      • 1...Sh5
        • 2.Qe5#
      • 1...d6!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxf6#
      • 1...Se4
        • 2.Se7#
      • 1...Sd5
        • 2.Sd4#
      • 1...Sh5
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...Se8
        • 2.Qxd7#
      • 1...Sg8
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(g);N_PINS(G),N_SPINR(b)::S(G)
    • S(g);N_PINS(G),N_SPINS(e)::S(G)
    • S(g);N_GUARD::QAB(I),XP(i)
  • Tries
    • Try
      • B(A);CHECK,XR(b)
      • Refutation
        • R(a);XB(A)
    • Try
      • R(E);CHECK,XS(e)
      • Refutation
        • R(a);XR(E)
    • Try
      • Q(I);N_PINP(i)
      • Threat
        • DUALS(2)
      • Vars
        • P(i);XS(G)::QAR1(I)
        • R(a);::QAR1(I)
      • Refutation
        • P(i);
    • Try
      • Q(I);N_PINP(i)
      • Threat
        • DUALS(2)
      • Vars
        • P(i);XS(G)::QAR1(I)
        • R(a);::QAR1(I)
        • S(g);::QAR1(I)
      • Refutation
        • P(i);
  • Actual
    • Q(I);N_PINP(i)
    • Threat
      • QAR1(I),XS(g)
    • Vars
      • S(g);N_PINS(G),N_SPINR(b)::S(G)
      • S(g);N_PINS(G),N_SPINS(e)::S(G)
      • S(g);N_GUARD::QAB(I),XP(i)
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