MESON Chess Problem Database

Problem Display
PID: 231549 (8/6NN/8/8/7k/5K1B/5p2/5R2 w - - 0 1)

Szasz, Lajos

Magyar Sakkvilag, 1927

8/6NN/8/8/7k/5K1B/5p2/5R2

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh3
      • 2.Rh1#
  • Tries
    • 1.Sf5+?
      • 1...Kxh3
        • 2.Rh1#
      • 1...Kh5!
    • 1.Sh5?
      • 1...Kxh3
        • 2.Rh1#
      • 1...Kxh5!
    • 1.Se6?
      • 1...Kxh3
        • 2.Rh1#
      • 1...Kh5!
    • 1.Se8?
      • 1...Kxh3
        • 2.Rh1#
      • 1...Kh5!
    • 1.Sf6?
      • 1...Kxh3
        • 2.Rh1#
      • 1...Kg5!
    • 1.Sf8?
      • 1...Kxh3
        • 2.Rh1#
      • 1...Kg5!
  • Keys
    • 1.Rh1!
      • threat
        • 2.Bf1#
        • 2.Bg2#
        • 2.Bg4#
        • 2.Bf5#
        • 2.Be6#
        • 2.Bd7#
        • 2.Bc8#
      • 1...f1Q+
        • 2.Bxf1#
      • 1...f1R+
        • 2.Bxf1#
      • 1...f1S
        • 2.Bxf1#
      • 1...f1B
        • 2.Bxf1#
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(b);OGATEB,P-FLIGHT,XB(C)::R(A)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);P-FLIGHT,XB(C)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XB(C)::R(A)
      • Refutation
        • K(b);P-FLIGHT,XS(D)
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XB(C)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XB(C)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XB(C)::R(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XB(C)::R(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);
    • Threat
      • DUALS(7)
    • Vars
      • P(a);CHECK::R(A)+B(C),XQ(a)
      • P(a);CHECK::R(A)+B(C),XR(a)
      • P(a);::R(A)+B(C),XS(a)
HTML5 logo

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).