MESON Chess Problem Database

Problem Display
PID: 76782 (8/8/3p3Q/5nK1/6p1/3b2k1/3NR1p1/6N1 w - - 0 1)

Ross, Colonel C

The Tablet, 1945

(First published on Sat Feb 10 1945)

8/8/3p3Q/5nK1/6p1/3b2k1/3NR1p1/6N1

#2

5 + 6

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Se4#
    • 1...Bc4
      • 2.Se4#
    • 1...Be4
      • 2.Sxe4#
    • 1...Bb5
      • 2.Se4#
    • 1...Ba6
      • 2.Se4#
    • 1...Se3
      • 2.Qh4#
      • 2.Qxd6#
    • 1...Sd4
      • 2.Qh4#
      • 2.Qxd6#
    • 1...Sh4
      • 2.Qxh4#
      • 2.Qxd6#
    • 1...Se7
      • 2.Qh4#
      • 2.Qxd6#
    • 1...Sg7
      • 2.Qh4#
      • 2.Qxd6#
  • Tries
    • 1.Sf1+?
      • 1...gxf1Q
        • 2.Qh2#
      • 1...gxf1B
        • 2.Qh2#
      • 1...gxf1R
        • 2.Qh2#
      • 1...gxf1S!
    • 1.Re3+?
      • 1...Sxe3
        • 2.Qh4#
      • 1...Kf2!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Rxg2#
        • 2.Qxg2#
      • 1...Bxe2
        • 2.Se4#
      • 1...gxh1Q
        • 2.Sf1#
      • 1...gxh1S
        • 2.Sf1#
      • 1...gxh1B
        • 2.Sf1#
      • 1...gxh1R
        • 2.Sf1#
      • 1...Be4
        • 2.Sxe4#
      • 1...Se3
        • 2.Qh4#
      • 1...Sh4
        • 2.Qxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • B(b);N_GUARD,XR(C)::S(B)
    • B(b);N_GUARD::S(B)
    • B(b);N_GUARD::S(B),XB(b)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • P(a);XS(B)::QAB1(E)
      • Refutation
        • P(a);XS(B)
    • Try
      • R(C);CHECK
      • Vars
        • S(e);XR(C)::QAB1(E)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(E);
    • Threat
      • DUALS(2)
    • Vars
      • B(b);N_GUARD,XR(C)::S(B)
      • P(a);N_GUARD,XQ(E)::S(B)
      • B(b);N_GUARD::S(B),XB(b)
      • S(e);N_GUARD::QAB1(E)
      • S(e);N_GUARD::QAB1(E),XS(e)
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).