MESON Chess Problem Database

Problem Display
PID: 198653 (8/8/8/8/KN6/2kpP3/R7/5B2 w - - 0 1)

Bortoluzzi, Toni

Essener Anzeiger, 1921

8/8/8/8/KN6/2kpP3/R7/5B2

#2

5 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Rc2#
    • 1...d2
      • 2.Sd5#
      • 2.Rc2#
  • Tries
    • 1.Ka3?
      • 1...d2
        • 2.Sd5#
        • 2.Rc2#
      • 1...Kc4!
    • 1.Bg2?
      • 1...d2
        • 2.Rc2#
      • 1...Kc4!
    • 1.Bh3?
      • 1...d2
        • 2.Rc2#
      • 1...Kc4!
    • 1.Rb2?
      • 1...Kc4
        • 2.Rc2#
      • 1...d2
        • 2.Rc2#
        • 2.Rb3#
      • 1...Kxb2!
    • 1.Rd2?
      • 1...Kc4
        • 2.Rc2#
      • 1...Kxd2!
    • 1.Rf2?
      • 1...Kc4
        • 2.Rc2#
      • 1...d2!
    • 1.Rg2?
      • 1...Kc4
        • 2.Rc2#
      • 1...d2!
    • 1.Rh2?
      • 1...Kc4
        • 2.Rc2#
      • 1...d2!
  • Keys
    • 1.Be2!
      • 1...Kc4
        • 2.Rc2#
      • 1...dxe2
        • 2.Rc2#
      • 1...d2
        • 2.Sd5#
        • 2.Rc2#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,P_SPINP(b)::R(B)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • B(A);
      • Vars
        • P(b);N_GUARD::R1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • P(b);N_GUARD::R1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::R(B)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::R(B)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::R(B)
      • Refutation
        • P(b);
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::R(B)
      • Refutation
        • P(b);
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::R(B)
      • Refutation
        • P(b);
  • Actual
    • B(A);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::R(B)
      • P(b);N_GUARD,XB(A)::R1(B)
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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).