MESON Chess Problem Database

Problem Display
PID: 193339 (3R2b1/1r1Np1Pq/1b2k1P1/2P4N/B1K2RP1/6n1/4pr2/2n5 w - - 0 1)

Salacz, Bela

Schor, Laszlo

4th Prize, Budapesti Sakkor, 1914

3R2b1/1r1Np1Pq/1b2k1P1/2P4N/B1K2RP1/6n1/4pr2/2n5

#2

10 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg7
      • 2.Sxg7#
    • 1...Rxf4+
      • 2.Sxf4#
    • 1...Sf1
      • 2.Re4#
    • 1...Sh1
      • 2.Re4#
    • 1...Se4
      • 2.Rxe4#
    • 1...Sf5
      • 2.Re4#
      • 2.gxf5#
    • 1...Sxh5
      • 2.Re4#
  • Tries
    • 1.Rf6+?
      • 1...exf6
        • 2.Re8#
      • 1...Rxf6!
  • Keys
    • 1.Kd4!
      • threat
        • 2.Sf8#
      • 1...Qxg7+
        • 2.Sxg7#
      • 1...Rxf4+
        • 2.Sxf4#
      • 1...Rxd7+
        • 2.Bxd7#
      • 1...Bxc5+
        • 2.Sxc5#
      • 1...Sb3+
        • 2.Bxb3#
      • 1...Sf5+
        • 2.gxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • Q(i);XP(I)::S(F),XQ(i)
    • R(c);CHECK,XR(C)::S(F),XR(c)
    • S(d);N_GUARD::R(C)
    • S(d);N_GUARD::R(C),XS(d)
    • S(d);N_GUARD,XS(F)::R(C)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • P(h);S_CUTR(c),XR(C)::R(J)
      • Refutation
        • R(c);XR(C)
  • Actual
    • K(B);P-FLIGHT,P_SPINP(E)
    • Threat
      • S(H)
    • Vars
      • Q(i);CHECK,XP(I)::S(F),XQ(i)
      • R(c);CHECK,XR(C)::S(F),XR(c)
      • R(g);CHECK,OGATE,XS(H)::B(A),XR(g)
      • B(e);CHECK,XP(E)::S(H),XB(e)
      • S(a);CHECK,N_GUARD::B(A),XS(a)
      • S(d);CHECK,OGATE::P(D),XS(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).