MESON Chess Problem Database

Problem Display
PID: 18259 (8/2pRp3/2p1k2N/4Pb1R/qp6/1r3NK1/Bn1Q4/B7 w - - 0 1)

Gooderson, Arthur R

The Problemist, 1954

8/2pRp3/2p1k2N/4Pb1R/qp6/1r3NK1/Bn1Q4/B7

#2

9 + 9

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Qd5#
  • Tries
    • 1.Bxb3+?
      • 1...Sc4
        • 2.Sg5#
        • 2.Bxc4#
      • 1...Qxb3!
    • 1.Qg5?
      • threat
        • 2.Qxe7#
        • 2.Qxf5#
      • 1...Bb1
        • 2.Qxe7#
      • 1...Bc2
        • 2.Qxe7#
      • 1...Bd3
        • 2.Qxe7#
      • 1...Bh3
        • 2.Qxe7#
      • 1...Be4
        • 2.Qxe7#
      • 1...Bg4
        • 2.Qxe7#
        • 2.Qxg4#
      • 1...Bg6
        • 2.Qxe7#
      • 1...Bh7
        • 2.Qxe7#
      • 1...Kxd7!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Qd7#
      • 1...Bd3
        • 2.Sd4#
      • 1...Sd3
        • 2.Sg5#
      • 1...c5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(f);N_GUARD::QAB1(C)
  • Tries
    • Try
      • B(B);CHECK,N_SPINS(D),XR(b)
      • Refutation
        • Q(c);P_PINS(D),XB(B)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(e);::QAR1(C),XP(i)
        • B(e);N_PINS(D)::QAR1(C),XP(i)
      • Refutation
        • K(g);N_SPINR(b),S_FLIGHT,XR(I)
  • Actual
    • R(I);
    • Threat
      • QAB1(C)
    • Vars
      • B(e);N_PINS(D)::S(D)
      • S(a);N_PINS(D)::S(D)
      • P(f);N_GUARD::QAB1(C)
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