MESON Chess Problem Database

Problem Display
PID: 6459 (R3bbnn/3pk1PR/3pP3/3P2P1/4r3/8/4p3/4K3 w - - 0 1)

Latzel, Gerhard Paul

2nd Place, Skakbladet, 1929

R3bbnn/3pk1PR/3pP3/3P2P1/4r3/8/4p3/4K3

#2

7 + 9

3098 FIDE Album (1914-1944) (I) 1971
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bh5
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...Bg6
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...Bf7
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...Sf6
      • 2.g8S#
    • 1...Sh6
      • 2.g8S#
  • Tries
    • 1.gxf8R+?
      • 1...Bf7
        • 2.Rae8#
        • 2.Rfe8#
      • 1...Sf7
        • 2.Raxe8#
        • 2.Rfxe8#
      • 1...Kxf8!
    • 1.gxh8Q+?
      • 1...Bf7
        • 2.Rxf7#
      • 1...Bg7!
    • 1.gxh8S+?
      • 1...Bf7
        • 2.Sg6#
        • 2.Rxf7#
      • 1...Bg7!
    • 1.gxh8B+?
      • 1...Bf7
        • 2.Rxf7#
      • 1...Bg7!
    • 1.gxh8R+?
      • 1...Bf7
        • 2.Rxf7#
      • 1...Bg7!
  • Keys
    • 1.exd7!
      • threat
        • 2.dxe8Q#
      • 1...Kxd7
        • 2.gxf8S#
      • 1...Kf7
        • 2.gxh8S#
      • 1...Bxd7
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Bh5
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Bg6
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Bf7
        • 2.d8Q#
      • 1...Sf6
        • 2.g8S#

This anticipates 144231(1931)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(f);::PXB(g)=Q
    • S(h);OGATE::P=S
  • Tries
    • Try
      • P(E);CHECK,XB(g)
      • Refutation
        • K(e);P_SPINB(f),S_FLIGHT,XR(E)
    • Try
      • P(E);CHECK,XS(i)
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R1(F),XB(f)
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • P(E);CHECK,XS(i)
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • P(E);CHECK,XS(i)
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R1(F),XB(f)
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • P(E);CHECK,XS(i)
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R1(F),XB(f)
      • Refutation
        • B(g);P_SPINB(g)
  • Actual
    • P(D);XP(d)
    • Threat
      • PXB(f)=Q
    • Vars
      • K(e);P-FLIGHT,XP(D)::PXB(g)=S
      • K(e);P-FLIGHT::PXS(i)=S
      • B(f);SBLOCK,XP(D)::PXB(g)=Q
      • B(f);::PXB(g)=Q
      • B(f);SBLOCK::P=Q
      • S(h);OGATE::P=S
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).