Problem Display
PID: 171341 (8/8/8/8/8/5NR1/5Kb1/7k w - - 0 1)

Antipov, Viacheslav Pavlovich

Temp-64 (Nikolaev), 1995

8/8/8/8/8/5NR1/5Kb1/7k

#2

3 + 2


6490 yacpdb 2018
5454 Near Snap 2022

SOLUTION


  • SOUND
  • Sets
    • 1...Bf1
      • 2.Rg1#
    • 1...Bxf3
      • 2.Rh3#
    • 1...Bh3
      • 2.Rg1#
      • 2.Rxh3#
  • Tries
    • 1.Ke1?
      • 1...Bf1
        • 2.Rg1#
      • 1...Bh3
        • 2.Rg1#
      • 1...Bxf3!
    • 1.Ke3?
      • 1...Bf1
        • 2.Rg1#
      • 1...Bh3
        • 2.Rg1#
      • 1...Bxf3!
    • 1.Rg5?
      • 1...Bf1
        • 2.Rg1#
      • 1...Bh3
        • 2.Rg1#
      • 1...Bxf3!
    • 1.Rg6?
      • 1...Bf1
        • 2.Rg1#
      • 1...Bh3
        • 2.Rg1#
      • 1...Bxf3!
    • 1.Rg7?
      • 1...Bf1
        • 2.Rg1#
      • 1...Bh3
        • 2.Rg1#
      • 1...Bxf3!
    • 1.Rg8?
      • 1...Bf1
        • 2.Rg1#
      • 1...Bh3
        • 2.Rg1#
      • 1...Bxf3!
  • Keys
    • 1.Rg4!
      • 1...Bxf3
        • 2.Rh4#
      • 1...Bf1
        • 2.Rg1#
      • 1...Bh3
        • 2.Rg1#

Anticipated by 242086(1936)

FEATURES


  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE::R1(C)
    • B(b);N_GUARD,XS(B)::R(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • B(b);OGATE::R1(C)
      • Refutation
        • B(b);XS(B)
    • Try
      • K(A);S_FLIGHT
      • Vars
        • B(b);OGATE::R1(C)
      • Refutation
        • B(b);XS(B)
    • Try
      • R(C);
      • Vars
        • B(b);OGATE::R1(C)
      • Refutation
        • B(b);XS(B)
    • Try
      • R(C);
      • Vars
        • B(b);OGATE::R1(C)
      • Refutation
        • B(b);XS(B)
    • Try
      • R(C);
      • Vars
        • B(b);OGATE::R1(C)
      • Refutation
        • B(b);XS(B)
    • Try
      • R(C);
      • Vars
        • B(b);OGATE::R1(C)
      • Refutation
        • B(b);XS(B)
  • Actual
    • R(C);
    • Vars
      • B(b);N_GUARD,XS(B)::R(C)
      • B(b);OGATE::R1(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).