MESON Chess Problem Database

Problem Display
PID: 189880 (1rb5/bqp3r1/pp4p1/2B3Q1/p2Nk1p1/1BK5/R3p1p1/4n1n1 w - - 0 1)

Simon, Jeno

Magyar Sakkujsag, 1912

1rb5/bqp3r1/pp4p1/2B3Q1/p2Nk1p1/1BK5/R3p1p1/4n1n1

#2

6 + 16

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Bxd5#
    • 1...Sc2
      • 2.Bxc2#
    • 1...Sef3
      • 2.Bc2#
    • 1...Sgf3
      • 2.Rxe2#
    • 1...Sh3
      • 2.Rxe2#
  • Tries
    • 1.Bc2+?
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sxc2!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sd2#
      • 1...Kxf3
        • 2.Qe3#
      • 1...Sexf3
        • 2.Bc2#
      • 1...Sgxf3
        • 2.Rxe2#
      • 1...gxf3
        • 2.Rxa4#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Rd7
        • 2.Qxg4#
      • 1...Bf5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(l);N_GUARD::B(B),XQ(l)
    • S(a);N_GUARD::B(B),XS(a)
    • S(a);N_GUARD::B(B)
    • S(b);N_GUARD::R(A),XP(c)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::B(B),XS(a)
      • Refutation
        • S(a);XB(B)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(f);S_FLIGHT,XS(D)::QAR1(F)
      • S(a);N_GUARD,SBLOCK,XS(D)::B(B)
      • S(b);N_GUARD,SBLOCK,XS(D)::R(A),XP(c)
      • P(g);SBLOCK,XS(D)::R(A),XP(e)
      • Q(l);N_GUARD::B(B),XQ(l)
      • R(n);S_CUTB(p)::QAR2(F),XP(g)
      • B(p);SBLOCK::QAR1(F)
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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).