MESON Chess Problem Database

Problem Display
PID: 7972 (4K3/8/2PNp1p1/1QBrk1p1/RN6/1nP5/4P3/5R2 w - - 0 1)

Saunders, Denis M

Australian Chess Problem Magazine TT, 1995-1996

4K3/8/2PNp1p1/1QBrk1p1/RN6/1nP5/4P3/5R2

#2

10 + 6

3936 The Wizard of Oz 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Sd3#
  • Tries
    • 1.Bg1?
      • threat
        • 2.Bh2#
      • 1...Kxd6
        • 2.Qb8#
      • 1...g4!
    • 1.Bd4+?
      • 1...Kxd6
        • 2.Qb8#
      • 1...Sxd4!
    • 1.Qd3?
      • threat
        • 2.Sc4#
        • 2.Sf7#
        • 2.Qe4#
        • 2.Qe3#
        • 2.Qg3#
      • 1...Rxc5
        • 2.Sf7#
        • 2.Qg3#
      • 1...Rxd6
        • 2.Bxd6#
        • 2.Qe3#
      • 1...Sxc5
        • 2.Sc4#
        • 2.Sf7#
        • 2.Qg3#
      • 1...Rd4
        • 2.Sf7#
      • 1...Sd2
        • 2.Sf7#
        • 2.Qg3#
      • 1...Sa5
        • 2.Sf7#
        • 2.Qe4#
        • 2.Qe3#
        • 2.Qg3#
      • 1...Rxd3!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Bg3#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kxd6
        • 2.Qb8#
      • 1...Kf6
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(a);S_CUTR(b)::S(E)
  • Tries
    • Try
      • B(G);P_PINR(b)
      • Threat
        • B(G)
      • Vars
        • K(c);N_SPINR(b),OGATEB,S_FLIGHT,XS(I)::QAB(F)
      • Refutation
        • P(d);
    • Try
      • B(G);CHECK,P_PINR(b)
      • Vars
        • K(c);N_SPINR(b),S_FLIGHT,XS(I)::QAB(F)
      • Refutation
        • S(a);XB(G)
    • Try
      • Q(F);
      • Threat
        • DUALS(5)
      • Vars
        • R(b);::S(I)
      • Refutation
        • R(b);XQ(F)
  • Actual
    • B(G);P_PINR(b)
    • Threat
      • B(G)
    • Vars
      • K(c);N_SPINR(b),S_FLIGHT::R(D)+S(E),DCHECK
      • K(c);N_SPINR(b),OGATEB,S_FLIGHT,XS(I)::QAB(F)
      • K(c);N_SPINR(b),S_FLIGHT::R(A)+B(G),DCHECK
HTML5 logo

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).