Problem Display
PID: 234958 (8/3p4/3K4/3B4/8/1p1k2p1/1P4P1/2B1R3 w - - 0 1)

Saunders, FW

Bradford Illustrated Weekly Telegraph, 1894

(First published on Sat Sep 15 1894)

8/3p4/3K4/3B4/8/1p1k2p1/1P4P1/2B1R3

#2

6 + 4


5454 Near Snap 2021
15239 Valois Notebooks 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Kc2
      • 2.Be4#
    • 1...Kd4
      • 2.Rd1#
  • Tries
    • 1.Kc5?
      • threat
        • 2.Be4#
      • 1...Kc2
        • 2.Be4#
      • 1...d6+!
    • 1.Ke5?
      • 1...Kc2
        • 2.Be4#
      • 1...d6+!
    • 1.Kxd7?
      • 1...Kc2
        • 2.Be4#
      • 1...Kd4!
    • 1.Bf4?
      • 1...Kd4
        • 2.Rd1#
      • 1...Kc2!
    • 1.Bg5?
      • 1...Kd4
        • 2.Rd1#
      • 1...Kc2!
    • 1.Bh6?
      • 1...Kd4
        • 2.Rd1#
      • 1...Kc2!
    • 1.Bf7?
      • 1...Kc2
        • 2.Bg6#
      • 1...Kd4!
    • 1.Bg8?
      • 1...Kc2
        • 2.Bh7#
      • 1...Kd4!
    • 1.Rg1?
      • 1...Kc2
        • 2.Be4#
      • 1...Kd4
        • 2.Rd1#
      • 1...Ke2!
    • 1.Rh1?
      • 1...Kc2
        • 2.Be4#
      • 1...Kd4
        • 2.Rd1#
      • 1...Ke2!
  • Keys
    • 1.Rf1!
      • 1...Kc2
        • 2.Be4#
      • 1...Ke2
        • 2.Bc4#
      • 1...Kd4
        • 2.Rd1#

Anticipated by 1953(1859), 4775(1891)

This anticipates 120937(1898), 57017(1900), 31183(1902), 175166(1902), 181896(1905), 50715(1907), 184830(1908), 189845(1912), 178324(1915), 193481(1915), 75889(1920), 206553(1925), 206593(1925), 231389(1927), 76533(1933), 76553(1936), 101951(1939), 19270(1943), 76843(1947), 51132(1950), 184308(1950), 51583(1965), 213018(1967), 121122(1980), 240454(1992)

FEATURES


  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(E)
    • K(b);P-FLIGHT::R(B)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • B(E)
      • Vars
        • K(b);S_FLIGHT::B(E)
      • Refutation
        • P(d);CHECK
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(E)
      • Refutation
        • P(d);CHECK
    • Try
      • K(F);P-FLIGHT,XP(d)
      • Vars
        • K(b);S_FLIGHT::B(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);S_FLIGHT::B(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(E);
      • Vars
        • K(b);S_FLIGHT::B(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(b);S_FLIGHT::B(E)
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(b);S_FLIGHT::B(E)
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(b);S_FLIGHT::B(E)
      • K(b);P-FLIGHT::R(B)


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).