MESON Chess Problem Database

Problem Display
PID: 17451 (1Q1N4/p5B1/r1p1R2K/pr5R/bk3Npp/p3b2q/B7/8 w - - 0 1)

Gooderson, Arthur R

The Problemist, 1946

1Q1N4/p5B1/r1p1R2K/pr5R/bk3Npp/p3b2q/B7/8

#2

8 + 12

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Re4#
    • 1...Bd2
      • 2.Re4#
    • 1...Bxf4+
      • 2.Qxf4#
    • 1...Bb6
      • 2.Sxc6#
  • Keys
    • 1.Rxc6!
      • threat
        • 2.Bc3#
      • 1...Rxc6+
        • 2.Sxc6#
      • 1...Bxf4+
        • 2.Qxf4#
      • 1...Bd1
        • 2.Qxb5#
      • 1...Bc2
        • 2.Qxb5#
      • 1...Bb3
        • 2.Qxb5#
      • 1...Bc1
        • 2.Bf8#
      • 1...Bg1
        • 2.Sd5#
      • 1...Bd2
        • 2.Bf8#
      • 1...Bf2
        • 2.Sd5#
      • 1...Bd4
        • 2.Sd5#
      • 1...Bc5
        • 2.Sd5#
      • 1...Bb6
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::R(D)
    • B(b);CHECK,OGATE,XS(B)::QAR(G),XB(b)
    • B(b);N_PINS(B),N_SPINR(i),S_CUTR(j)::S(H),XP(k)
  • Actual
    • R(D);P_SPINR(D),XP(k)
    • Threat
      • B(F)
    • Vars
      • R(j);CHECK,XR(D)::S(H),XR(j)
      • B(b);CHECK,OGATE,XS(B)::QAR(G),XB(b)
      • B(d);N_GUARD::QAR1(G),XR(i)
      • B(b);N_GUARD::B(F)
      • B(b);N_PINS(B)::S(B)
      • B(b);N_PINR(D),N_PINS(B),N_SPINR(i)::R1(D)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).