Problem Display
PID: 186129 (2NN4/1P1n4/k1B2n2/5bRr/1P1p3p/6P1/2P5/4K2R w K - 0 1)

Kipping, Cyril Stanley

Chess, 1959

2NN4/1P1n4/k1B2n2/5bRr/1P1p3p/6P1/2P5/4K2R

#2

10 + 7


SOLUTION


  • SOUND
  • Sets
    • 1...Bxc2
      • 2.Bb5#
    • 1...Bh3
      • 2.Bb5#
    • 1...Be4
      • 2.Bb5#
    • 1...Bg4
      • 2.Bb5#
    • 1...Be6
      • 2.Bb5#
    • 1...Bg6
      • 2.Bb5#
    • 1...Bh7
      • 2.Bb5#
    • 1...Sc5
      • 2.b8S#
    • 1...Se5
      • 2.b8S#
    • 1...Sb6
      • 2.b8S#
    • 1...Sf8
      • 2.b8S#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Ra1#
      • 1...Bxc2
        • 2.Bb5#
      • 1...Be6
        • 2.Bb5#
      • 1...Sc5
        • 2.b8S#
      • 1...Sb6
        • 2.b8S#
      • 1...Se4+!
    • 1.b8Q?
      • threat
        • 2.Bb5#
        • 2.Qa7#
        • 2.Qb5#
        • 2.Qb7#
        • 2.Qa8#
      • 1...Bd3
        • 2.Bb7#
        • 2.Qa7#
        • 2.Qb7#
        • 2.Qa8#
      • 1...Sc5
        • 2.Bb5#
        • 2.Qa7#
        • 2.Qb5#
        • 2.Qb6#
        • 2.Qa8#
      • 1...Sb6
        • 2.Qa7#
        • 2.Qxb6#
        • 2.Qb7#
      • 1...Sxb8!
    • 1.b8R?
      • threat
        • 2.Bb5#
        • 2.Ra8#
      • 1...Bd3
        • 2.Bb7#
        • 2.Ra8#
      • 1...Sb6
        • 2.Rxb6#
      • 1...Sxb8!
  • Keys
    • 1.0-0!
      • threat
        • 2.Ra1#
      • 1...Bxc2
        • 2.Bb5#
      • 1...Be6
        • 2.Bb5#
      • 1...Sc5
        • 2.b8S#
      • 1...Sb6
        • 2.b8S#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • B(c);XP(C)::B(G)
    • B(c);::B(G)
    • S(g);N_GUARD::P=S
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • B(c);XP(C)::B(G)
        • B(c);::B(G)
        • S(g);N_GUARD::P=S
      • Refutation
        • S(f);CHECK
    • Try
      • P(H);
      • Threat
        • DUALS(5)
      • Refutation
        • S(g);XQ(H)
    • Try
      • P(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);N_GUARD::R1(H),XS(g)
      • Refutation
        • S(g);XR(H)
  • Actual
    • K(A);0-0
    • Threat
      • R(B)
    • Vars
      • B(c);XP(C)::B(G)
      • B(c);::B(G)
      • S(g);N_GUARD::P=S


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).