MESON Chess Problem Database

Problem Display
PID: 179297 (2b2Q1b/BpKPp2p/8/3Bk1P1/3N1Nrn/5P2/1pp3n1/1RR5 w - - 0 1)

Szoghy, Jozsef

2nd Prize, Problemisten, 1948

2b2Q1b/BpKPp2p/8/3Bk1P1/3N1Nrn/5P2/1pp3n1/1RR5

#2

11 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Rxe1#
    • 1...Sxf3
      • 2.Sxf3#
      • 2.Qf5#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sg6
      • 2.Qf5#
    • 1...b5
      • 2.Sc6#
    • 1...b6
      • 2.Sc6#
    • 1...e6
      • 2.Qd6#
  • Tries
    • 1.Bxb7?
      • threat
        • 2.Sc6#
        • 2.Sd3#
      • 1...Rxf4
        • 2.Qxe7#
      • 1...Bxd7
        • 2.Sd3#
      • 1...Sxf4
        • 2.Qxh8#
      • 1...Sxf3
        • 2.Sxf3#
        • 2.Sd3#
        • 2.Qf5#
      • 1...bxc1S
        • 2.Sc6#
        • 2.Rb5#
      • 1...cxb1Q
        • 2.Sc6#
      • 1...cxb1B
        • 2.Sc6#
      • 1...Bf6
        • 2.Sd3#
      • 1...Sf5
        • 2.Sd3#
        • 2.Qxf5#
      • 1...Se1
        • 2.Sc6#
        • 2.Rxe1#
      • 1...Bxb7!
  • Keys
    • 1.Re1+!
      • 1...Sxe1
        • 2.Rxe1#
      • 1...Se3
        • 2.Rxe3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::R(B),XS(c)
    • S(e);N_GUARD::QAR1(K),XS(e)
    • S(e);N_GUARD::QAR1(K)
    • P(g);N_GUARD::S(D)
    • P(h);OGATE::QAB1(K)
  • Tries
    • Try
      • B(F);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • R(d);SBLOCK,XS(E)::QAR2(K),XP(h)
        • B(j);XP(J)::S(E)
        • S(c);SBLOCK,XS(E)::QAB(K),XB(k)
        • P(b);XR(A)::S(D)
        • B(k);::S(E)
      • Refutation
        • B(j);XB(F)
  • Actual
    • R(B);CHECK
    • Vars
      • S(c);OGATE,XR(B)::R(A),XS(c)
      • S(c);N_GUARD,P_SPINS(c)::R(B),XS(c)
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).