MESON Chess Problem Database

Problem Display
PID: 175112 (1B1n4/5N2/p4p2/nrR2P2/1p1k1N2/5PpK/7b/4Q3 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Deutsche Schachzeitung, 1902

1B1n4/5N2/p4p2/nrR2P2/1p1k1N2/5PpK/7b/4Q3

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qxg1#
    • 1...g2
      • 2.Qf2#
    • 1...b3
      • 2.Qc3#
  • Tries
    • 1.Be5+?
      • 1...fxe5
        • 2.Qxe5#
      • 1...Kxc5!
    • 1.Rc1?
      • threat
        • 2.Qd2#
        • 2.Qe4#
      • 1...Re5
        • 2.Qd2#
      • 1...Sb3
        • 2.Qe4#
      • 1...Sc4!
    • 1.Rc2?
      • threat
        • 2.Qd2#
        • 2.Qe4#
      • 1...Re5
        • 2.Qd2#
      • 1...Sb3
        • 2.Qe4#
      • 1...Sc4!
  • Keys
    • 1.Se5!
      • 1...Kxc5
        • 2.Qe3#
      • 1...Rxc5
        • 2.Qd2#
      • 1...Rxb8
        • 2.Rd5#
      • 1...fxe5
        • 2.Qxe5#
      • 1...Rb6
        • 2.Rd5#
      • 1...Rb7
        • 2.Rd5#
      • 1...Bg1
        • 2.Qxg1#
      • 1...Sb3
        • 2.Rc4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sac6
        • 2.Rc4#
      • 1...Sab7
        • 2.Rc4#
      • 1...Sdc6
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sdb7
        • 2.Se6#
      • 1...Sf7
        • 2.Se6#
      • 1...g2
        • 2.Qf2#
      • 1...b3
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB(A),XB(a)
    • P(b);N_GUARD::QAB(A)
    • P(c);N_GUARD::QAB1(A)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • P(h);OGATE,XB(H)::QAB1(A),XP(h)
      • Refutation
        • K(d);S_FLIGHT,XR(E)
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);::QAR2(A)
        • S(e);::QAR1(A)
      • Refutation
        • S(e);
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);::QAR2(A)
        • S(e);::QAR1(A)
      • Refutation
        • S(e);
  • Actual
    • S(G);
    • Vars
      • K(d);S_FLIGHT,XR(E)::QAB(A)
      • R(f);SBLOCK,XR(E)::QAR2(A)
      • R(f);N_GUARD,XB(H)::R1(E)
      • P(h);OGATE,XS(G)::QAB1(A),XP(h)
      • R(f);N_GUARD::R1(E)
      • B(a);N_GUARD::QAB(A),XB(a)
      • S(e);N_GUARD::R1(E)
      • S(e);N_GUARD::R1(E),XS(e)
      • S(i);N_GUARD::S(D)
      • S(i);N_GUARD::S(D),XS(i)
      • P(b);N_GUARD::QAB(A)
      • P(c);N_GUARD::QAB1(A)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).