MESON Chess Problem Database

Problem Display
PID: 807 (2K3b1/1n1Qp1R1/1N1p1k2/2p2N2/5P2/2R3P1/1B6/4r3 w - - 0 1)

Gooderson, Arthur R

British Chess Magazine, 1964

2K3b1/1n1Qp1R1/1N1p1k2/2p2N2/5P2/2R3P1/1B6/4r3

#2

9 + 7

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Sxd5#
    • 1...Bh7
      • 2.Sd5#
  • Tries
    • 1.Qe8?
      • threat
        • 2.Qg6#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Ke6
        • 2.Qg6#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Bh7
        • 2.Qf7#
      • 1...Be6+!
    • 1.Qxe7+?
      • 1...Kxf5
        • 2.Rg5#
      • 1...Rxe7!
  • Keys
    • 1.g4!
      • threat
        • 2.g5#
      • 1...Rg1
        • 2.Qxe7#
      • 1...Re6
        • 2.Sd5#
      • 1...Be6
        • 2.Re3#
      • 1...e6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(g);N_GUARD::S(F),XB(g)
    • B(g);N_GUARD::S(F)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • K(d);P-FLIGHT,XS(E)::QAB1(G)
        • K(d);P-FLIGHT,P_SPINP(f)::QAR2(G)
        • B(g);N_GUARD::QAR1(G),XB(g)
        • B(g);N_GUARD::QAR1(G)
      • Refutation
        • B(g);CHECK
    • Try
      • Q(G);CHECK,XP(f)
      • Vars
        • K(d);P-FLIGHT,XS(E)::R1(H)
      • Refutation
        • R(a);XQ(G)
  • Actual
    • P(C);
    • Threat
      • P(C)
    • Vars
      • R(a);N_GUARD::QAB1(G),XP(f)
      • R(a);S_CUTB(g)::S(F)
      • B(g);P_PINQ(G),S_CUTP(f)::B(A)+R(B)
      • P(f);S_CUTR(a)::QAB1(G)
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