MESON Chess Problem Database

Problem Display
PID: 140679 (1q6/8/b7/2n3N1/r2p2Q1/R2pk1r1/2p2NB1/4BK1n w - - 0 1)

Jarman, CP

Kipping, Cyril Stanley

The Problemist, 1943

1q6/8/b7/2n3N1/r2p2Q1/R2pk1r1/2p2NB1/4BK1n

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Qe2#
    • 1...Rxg2
      • 2.Qf3#
    • 1...Rf3
      • 2.Qxf3#
    • 1...Sb3
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Se6
      • 2.Qe4#
    • 1...Sb7
      • 2.Qe4#
    • 1...Sd7
      • 2.Qe4#
    • 1...c1S
      • 2.Sd1#
    • 1...c1B
      • 2.Sd1#
  • Tries
    • 1.Rxd3+?
      • 1...Sxd3
        • 2.Qe4#
      • 1...Bxd3+!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qe2#
      • 1...Rxg4
        • 2.Sxg4#
      • 1...Rxa3
        • 2.Qxd4#
      • 1...Sxe6
        • 2.Qe4#
      • 1...c1S
        • 2.Sd1#
      • 1...Qb3
        • 2.Qf4#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Sb3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • Q(j);P_PINS(C),SBLOCK::QAR1(F)
    • R(e);N_GUARD,XB(D)::QAR1(F)
    • R(e);N_GUARD,P_PINS(C)::QAR1(F),XR(e)
    • S(h);N_GUARD,N_SPINP(c)::QAR1(F)
    • S(h);N_GUARD::QAR1(F),XS(h)
    • S(h);N_GUARD::QAR1(F)
    • P(b);N_GUARD::S(C)
  • Tries
    • Try
      • R(E);CHECK,P_SPINR(E),XP(c)
      • Vars
        • S(h);XR(E)::QAR1(F)
      • Refutation
        • B(i);CHECK,XR(E)
  • Actual
    • S(G);
    • Threat
      • QAR1(F)
    • Vars
      • R(e);XQ(F)::S(C),XR(e)
      • R(f);N_GUARD,N_SPINP(c),XR(E)::QAB1(F),XP(g)
      • S(h);N_GUARD,XS(G)::QAR1(F)
      • P(b);N_GUARD::S(C)
      • Q(j);N_GUARD,N_SPINP(c)::QAB1(F)
      • R(e);N_GUARD,P_PINS(C)::QAR1(F),XR(e)
      • S(h);N_GUARD,N_SPINP(c)::QAR1(F)
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).