MESON Chess Problem Database

Problem Display
PID: 206666 (8/6p1/5pB1/1pK2P2/1Pp1kpN1/2R1p3/4P2B/8 w - - 0 1)

Toth, Gyula

Nepszava, 1925

8/6p1/5pB1/1pK2P2/1Pp1kpN1/2R1p3/4P2B/8

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Rxe3#
  • Tries
    • 1.Sf2+?
      • 1...Ke5
        • 2.Rxe3#
      • 1...exf2!
    • 1.Bg3?
      • 1...f3
        • 2.Rxe3#
      • 1...fxg3!
    • 1.Ra3?
      • 1...f3
        • 2.Rxe3#
      • 1...c3!
  • Keys
    • 1.Se5!
      • 1...Kxe5
        • 2.Rxe3#
      • 1...fxe5
        • 2.f6#
      • 1...f3
        • 2.exf3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD::R1(C),XP(a)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d)::R(C),XP(a)
      • Refutation
        • P(a);XS(E)
    • Try
      • B(B);
      • Vars
        • P(d);N_GUARD::R1(C),XP(a)
      • Refutation
        • P(d);XB(B)
    • Try
      • R(C);
      • Vars
        • P(d);N_GUARD::R1(C),XP(a)
      • Refutation
        • P(b);
  • Actual
    • S(E);
    • Vars
      • K(c);P-FLIGHT,P_SPINP(d),XS(E)::R(C),XP(a)
      • P(f);OGATE,SBLOCK,XS(E)::B(H)+P(G)
      • P(d);OGATE::P(A),XP(d)
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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).