MESON Chess Problem Database

Problem Display
PID: 72360 (2R1b2B/KQ6/p1p1Rr2/5n2/3r4/p1kP1N2/5N2/1B1n2q1 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1953

2R1b2B/KQ6/p1p1Rr2/5n2/3r4/p1kP1N2/5N2/1B1n2q1

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Sxd1#
    • 1...Qg2
      • 2.Sxd1#
    • 1...Qg3
      • 2.Sxd1#
    • 1...Qg4
      • 2.Sxd1#
    • 1...Qg5
      • 2.Sxd1#
    • 1...Qg6
      • 2.Sxd1#
    • 1...Qg7
      • 2.Sxd1#
    • 1...Qg8
      • 2.Sxd1#
    • 1...Rd7
      • 2.Rexc6#
      • 2.Rcxc6#
    • 1...Rg6
      • 2.Se4#
    • 1...Rh6
      • 2.Se4#
    • 1...Rf7
      • 2.Se4#
    • 1...Rf8
      • 2.Se4#
  • Tries
    • 1.Rexc6+?
      • 1...Rc4
        • 2.Rxc4#
      • 1...Rxc6
        • 2.Se4#
      • 1...Bxc6!
    • 1.Rcxc6+?
      • 1...Rc4
        • 2.Rxc4#
      • 1...Bxc6!
  • Keys
    • 1.Rb8!
      • threat
        • 2.Qb3#
      • 1...Rb4
        • 2.Qxb4#
      • 1...Qg7
        • 2.Sxd1#
      • 1...Rd7
        • 2.Rxc6#
      • 1...Rf7
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(b);N_GUARD::S(B),XS(a)
    • Q(b);N_GUARD,P_PINQ(G)::S(B),XS(a)
    • R(i);P_SPINR(e)::S(B)
    • R(i);P_PINQ(G),P_SPINR(e)::S(B)
  • Tries
    • Try
      • R(E);CHECK,XP(h)
      • Vars
        • R(e);N_GUARD,P_PINS(B),P_SPINR(e)::R1(E),XR(e)
        • R(i);P_SPINR(e),XR(E)::S(B)
      • Refutation
        • B(j);P_SPINB(j),XR(E)
    • Try
      • R(H);CHECK,XP(h)
      • Vars
        • R(e);N_GUARD,P_PINS(B),P_SPINR(e)::R1(H),XR(e)
      • Refutation
        • B(j);XR(H)
  • Actual
    • R(H);N_PINP(h)
    • Threat
      • QAR1(G)
    • Vars
      • R(e);N_GUARD,P_PINS(B),P_SPINR(i)::QAB1(G),XR(e)
      • Q(b);N_GUARD,P_PINQ(G)::S(B),XS(a)
      • R(e);N_GUARD,P_PINQ(G),P_PINS(B),P_SPINR(i),S_CUTB(j)::R(E),XP(h)
      • R(i);P_PINQ(G),P_SPINR(e)::S(B)
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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).