MESON Chess Problem Database

Problem Display
PID: 841 (3B4/Kp2Rp2/6p1/2R3P1/1Qr2k2/2b2N1P/b4P2/3r2nB w - - 0 1)

Gooderson, Arthur R

British Chess Magazine, 1972

3B4/Kp2Rp2/6p1/2R3P1/1Qr2k2/2b2N1P/b4P2/3r2nB

#2

10 + 9

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Bc7#
    • 1...Re4
      • 2.Rxe4#
      • 2.Qxe4#
    • 1...Bd2
      • 2.Bc7#
  • Tries
    • 1.Qxc4+?
      • 1...Rd4
        • 2.Bc7#
      • 1...Bd4
        • 2.Bc7#
      • 1...Bxc4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Bc7#
        • 2.Re4#
        • 2.Rxf7#
      • 1...Rdxd4
        • 2.Rxf7#
      • 1...Rxb4
        • 2.Bc7#
        • 2.Re4#
      • 1...Rcxd4
        • 2.Bc7#
      • 1...Rxc5
        • 2.Re4#
      • 1...Bxd4
        • 2.Re4#
      • 1...Sxh3
        • 2.Re4#
      • 1...f5
        • 2.Se6#
      • 1...Re1
        • 2.Rxf7#
      • 1...Bb1
        • 2.Bc7#
      • 1...Sf3
        • 2.Se2#
      • 1...f6
        • 2.Se6#
        • 2.Bc7#
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • R(e);S_CUTB(d),S_CUTR(a)::B(J)
    • B(d);N_GUARD,S_CUTR(a)::B(J)
  • Tries
    • Try
      • Q(E);CHECK,XR(e)
      • Vars
        • R(a);P_SPINR(a)::B(J)
        • B(d);P_PINR(F),P_SPINB(d)::B(J)
      • Refutation
        • B(c);XQ(E)
  • Actual
    • S(C);N_PINR(e)
    • Threat
      • DUALS(3)
    • Vars
      • R(a);XS(C)::R(I),XP(i)
      • R(e);P_SPINR(e),XS(C)::B(J)
      • R(e);XR(F)::R1(I)
      • B(d);P_PINR(F),XS(C)::R1(I)
      • S(b);XP(D)::R1(I)
      • P(i);N_GUARD::S(C)
      • R(a);::R(I),XP(i)
      • B(c);::B(J)
      • S(b);N_GUARD::S(C)
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