Problem Display
PID: 239967 (2K5/5B1n/ppkN4/5P1Q/1R3P2/R1pNp2p/2r5/4b2b w - - 0 1)

Kipping, Cyril Stanley

Parallele 50, 1949

2K5/5B1n/ppkN4/5P1Q/1R3P2/R1pNp2p/2r5/4b2b

#2

9 + 10


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...b5
      • 2.Rxa6#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Rxb6#
      • 1...b5
        • 2.Rxa6#
      • 1...Rb2!
    • 1.Se4?
      • threat
        • 2.Se5#
      • 1...b5
        • 2.Rxa6#
      • 1...Bxe4!
    • 1.Rxa6?
      • threat
        • 2.Rbxb6#
        • 2.Raxb6#
      • 1...Rb2
        • 2.Raxb6#
      • 1...Kxd6!
    • 1.Qg6?
      • threat
        • 2.Rc4#
      • 1...b5
        • 2.Rxa6#
      • 1...Bd5
        • 2.Be8#
      • 1...Sf6!
    • 1.Qh6?
      • threat
        • 2.Rc4#
      • 1...b5
        • 2.Rxa6#
      • 1...Bd5
        • 2.Be8#
      • 1...Sf6!
  • Keys
    • 1.Sb7!
      • threat
        • 2.Se5#
      • 1...b5
        • 2.Rxa6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(h);OGATEB::R(A),XP(g)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(C),XP(h)
      • Vars
        • P(h);OGATEB::R(A),XP(g)
      • Refutation
        • R(c);
    • Try
      • S(G);
      • Threat
        • S(B)
      • Vars
        • P(h);OGATEB::R(A),XP(g)
      • Refutation
        • B(b);XS(G)
    • Try
      • R(A);P_PINP(h),XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::R1(A),XP(h)
      • Refutation
        • K(i);P-FLIGHT,XS(G)
    • Try
      • Q(F);
      • Threat
        • R(C)
      • Vars
        • P(h);OGATEB::R(A),XP(g)
        • B(b);SBLOCK::B(H)
      • Refutation
        • S(j);
    • Try
      • Q(F);
      • Threat
        • R(C)
      • Vars
        • P(h);OGATEB::R(A),XP(g)
        • B(b);SBLOCK::B(H)
      • Refutation
        • S(j);
  • Actual
    • S(G);
    • Threat
      • S(B)
    • Vars
      • P(h);OGATEB::R(A),XP(g)


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).