Problem Display
PID: 274056 (7R/3pk1p1/6K1/4P3/n4PB1/3RB3/8/3r4 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2023

7R/3pk1p1/6K1/4P3/n4PB1/3RB3/8/3r4

#2

7 + 5


SOLUTION


  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rxd7#
    • 1...Rb1
      • 2.Rxd7#
    • 1...Rc1
      • 2.Rxd7#
    • 1...Re1
      • 2.Rxd7#
    • 1...Rf1
      • 2.Rxd7#
    • 1...Rg1
      • 2.Rxd7#
    • 1...Rh1
      • 2.Rxd7#
    • 1...d5
      • 2.exd5 ep#
    • 1...d6
      • 2.exd6#
  • Tries
    • 1.Bc5+?
      • 1...d6
        • 2.Bxd6#
        • 2.exd6#
      • 1...Sxc5!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Bh4#
      • 1...Rh1
        • 2.Rxd7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(a);N_GUARD::R1(A),XP(c)
    • R(a);N_GUARD,P_PINB(D)::R1(A),XP(c)
    • P(c);OGATE::P(E),XP(c),EP
    • P(c);OGATE::P(E),XP(c)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • S(b);XB(B)
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • R(a);N_GUARD::R1(A),XP(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).