MESON Chess Problem Database

Problem Display
PID: 251259 (4R3/3Q3b/8/r3BRp1/2P1k1p1/b2n3P/3P4/4nK2 w - - 0 1)

Nidiry, Joseph J

British Chess Magazine, 1933

4R3/3Q3b/8/r3BRp1/2P1k1p1/b2n3P/3P4/4nK2

#2

8 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Qb7+?
      • 1...Kxf5
        • 2.Qxh7#
      • 1...Rd5!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Re3#
      • 1...Kxf3
        • 2.Qxg4#
      • 1...Rxe5
        • 2.Qd5#
      • 1...Sxf3
        • 2.Qxh7#
      • 1...Sxe5
        • 2.Qxg4#
      • 1...gxf3
        • 2.Qxh7#
      • 1...Bc5
        • 2.Qc6#
        • 2.Qd5#
        • 2.Qb7#
      • 1...Sc2
        • 2.Qxd3#
      • 1...Sg2
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);OGATEB,S_FLIGHT,XR(F)::QAB(G),XB(h)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • K(d);S_CUTS(c),S_FLIGHT,XR(F)::QAB1(G),XP(e)
      • R(f);N_GUARD,P_SPINR(f),XB(E)::QAB1(G)
      • S(a);SBLOCK,XR(F)::QAB(G),XB(h)
      • S(c);N_GUARD,P_SPINS(c),XB(E)::QAR2(G),XP(e)
      • P(e);SBLOCK,XR(F)::QAB(G),XB(h)
      • S(a);N_GUARD::QAB1(G),XS(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).