MESON Chess Problem Database

Problem Display
PID: 223294 (2K2b2/3N4/8/3PPrB1/P2k1p2/4NP1b/1P2P3/6Q1 w - - 0 1)

Chancellor, JG

Charleston Sunday News, 1885

2K2b2/3N4/8/3PPrB1/P2k1p2/4NP1b/1P2P3/6Q1

#2

11 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Rxe5
        • 2.Qd3#
      • 1...Kxe3!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sec4#
        • 2.Sg4#
      • 1...Rxe5+
        • 2.Sf5#
      • 1...Rxg5+
        • 2.Sg4#
      • 1...Rf6+
        • 2.Sg4#
      • 1...Rf7+
        • 2.Sg4#
      • 1...Kc5
        • 2.Sc2#
      • 1...Kxe5
        • 2.Sec4#
      • 1...fxe3
        • 2.Qxe3#
      • 1...Bg4
        • 2.Sec4#
        • 2.Sxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);P_PINS(J),XP(H)::QAR1(A)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT,XS(D)
  • Actual
    • S(J);
    • Threat
      • DUALS(2)
    • Vars
      • R(d);CHECK,SBLOCK,XP(H)::QAB(A)+S(D),DCHECK
      • R(d);CHECK,XB(I)::QAB(A)+S(D)
      • R(d);CHECK::QAB(A)+S(D)
      • K(b);S_FLIGHT::QAB(A)+S(D)
      • K(b);S_FLIGHT,XP(H)::S(D)
      • P(c);OGATE,P_SPINP(c),XS(D)::QAB1(A),XP(c)
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).