Problem Display
PID: 67452 (8/3pR1p1/8/1K1k4/3PN1BR/2p5/3p4/2b1n3 w - - 0 1)

Touw Hian Bwee

La Cle, 1970

8/3pR1p1/8/1K1k4/3PN1BR/2p5/3p4/2b1n3

#2

6 + 7


6352 A Collection of Chess Problems by Touw Hian Bwee 2008

SOLUTION


  • SOUND
  • Tries
    • 1.Sf2?
      • threat
        • 2.Rxd7#
      • 1...Kxd4
        • 2.Bf3#
      • 1...Kd6
        • 2.Rxd7#
      • 1...d6
        • 2.Be6#
      • 1...Ba3!
    • 1.Sxc3+?
      • 1...Kd6
        • 2.Rxd7#
      • 1...Kxd4!
    • 1.Sf6+?
      • 1...Kxd4
        • 2.Be2#
        • 2.Bf5#
      • 1...Kd6
        • 2.Rxd7#
      • 1...gxf6!
    • 1.Bf5?
      • threat
        • 2.Rxd7#
      • 1...Kxd4
        • 2.Sf6#
      • 1...d6
        • 2.Sxc3#
      • 1...Ba3!
    • 1.Be6+?
      • 1...dxe6
        • 2.Rd7#
      • 1...Kxd4!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Rxd7#
      • 1...Kxd4
        • 2.Bf3#
      • 1...Kd6
        • 2.Rxd7#
      • 1...d6
        • 2.Be6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • R(F),XP(f)
      • Vars
        • K(e);P-FLIGHT,XP(A)::R(D)+B(C)
        • K(e);P-FLIGHT::R1(F),XP(f)
        • P(f);N_GUARD,SBLOCK::B(C)
      • Refutation
        • B(a);
    • Try
      • S(B);CHECK,XP(d)
      • Vars
        • K(e);P-FLIGHT::R1(F),XP(f)
      • Refutation
        • K(e);P-FLIGHT,XP(A)
    • Try
      • S(B);CHECK
      • Vars
        • K(e);P-FLIGHT::R1(F),XP(f)
      • Refutation
        • P(g);XS(B)
    • Try
      • B(C);
      • Threat
        • R(F),XP(f)
      • Vars
        • K(e);P-FLIGHT,XP(A)::R(D)+S(B)
        • P(f);SBLOCK::S(B),XP(d)
      • Refutation
        • B(a);
    • Try
      • B(C);CHECK
      • Vars
        • P(f);SBLOCK,XB(C)::R(F)
      • Refutation
        • K(e);P-FLIGHT,XP(A)
  • Actual
    • S(B);
    • Threat
      • R(F),XP(f)
    • Vars
      • K(e);P-FLIGHT,XP(A)::R(D)+B(C)
      • K(e);P-FLIGHT::R1(F),XP(f)
      • P(f);N_GUARD,SBLOCK::B(C)


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).