Problem Display
PID: 175443 (2N5/3p3p/3B2pP/3k2K1/P7/3B4/4N3/8 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1899

2N5/3p3p/3B2pP/3k2K1/P7/3B4/4N3/8

#2

7 + 4


6490 yacpdb 2018
5454 Near Snap 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Kc6
      • 2.Be4#
    • 1...Ke6
      • 2.Bc4#
  • Tries
    • 1.Kf6?
      • 1...Kc6
        • 2.Be4#
      • 1...g5!
    • 1.Sc1?
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6
        • 2.Bc4#
      • 1...Kd4!
    • 1.Sg1?
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6
        • 2.Bc4#
      • 1...Kd4!
    • 1.Sc3+?
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6
        • 2.Bc4#
      • 1...Kd4!
    • 1.Sg3?
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6
        • 2.Bc4#
      • 1...Kd4!
    • 1.Sf4+?
      • 1...Kc6
        • 2.Be4#
      • 1...Kd4!
    • 1.Bb1?
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6
        • 2.Ba2#
      • 1...Kc4!
    • 1.Bb5?
      • 1...Ke6
        • 2.Bc4#
      • 1...Ke4!
    • 1.a5?
      • 1...Ke6
        • 2.Bc4#
      • 1...Kc6!
  • Keys
    • 1.Bc2!
      • 1...Kc4
        • 2.Sb6#
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6
        • 2.Bb3#

Anticipated by 223291(1886)

FEATURES


  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • P(b);
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(a);S_FLIGHT::S(G)
      • K(a);S_FLIGHT::B(B)


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).