MESON Chess Problem Database

Problem Display
PID: 203490 (8/2Q5/5p2/2pp1B2/3k4/N5p1/4n1K1/4B3 w - - 0 1)

Votruba, Otakar

Ceskoslovenska republika, 1924

8/2Q5/5p2/2pp1B2/3k4/N5p1/4n1K1/4B3

#2

5 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sc2#
    • 1...Sc1
      • 2.Qf4#
    • 1...Sg1
      • 2.Qf4#
    • 1...Sf4+
      • 2.Qxf4#
    • 1...c4
      • 2.Sc2#
  • Tries
    • 1.Bd2?
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Sc1
        • 2.Qf4#
      • 1...Sg1
        • 2.Qf4#
      • 1...c4
        • 2.Sc2#
        • 2.Sb5#
      • 1...Sc3!
    • 1.Ba5?
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Ke3
        • 2.Sc2#
      • 1...Sc1
        • 2.Qf4#
      • 1...Sg1
        • 2.Qf4#
      • 1...c4
        • 2.Sc2#
      • 1...Sc3!
    • 1.Qxg3?
      • threat
        • 2.Bf2#
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Sxg3!
    • 1.Qd6?
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Ke3
        • 2.Sc2#
      • 1...Sc1
        • 2.Qf4#
      • 1...Sg1
        • 2.Qf4#
      • 1...c4
        • 2.Sc2#
      • 1...Sc3!
  • Keys
    • 1.Bb4!
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Ke3
        • 2.Sc2#
      • 1...cxb4
        • 2.Sc2#
      • 1...Sc3
        • 2.Bxc5#
      • 1...Sc1
        • 2.Qf4#
      • 1...Sg1
        • 2.Qf4#
      • 1...c4
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(C)
    • S(a);N_GUARD::QAR2(E)
    • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
    • P(d);::S(C)
  • Tries
    • Try
      • B(A);
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
        • S(a);N_GUARD::QAR2(E)
      • Refutation
        • S(a);
    • Try
      • B(A);
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
        • K(c);S_FLIGHT::S(C)
        • S(a);N_GUARD::QAR2(E)
        • P(d);::S(C)
      • Refutation
        • S(a);
    • Try
      • Q(E);XP(b)
      • Threat
        • B(A)
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
      • Refutation
        • S(a);XQ(E)
    • Try
      • Q(E);P_PINP(e)
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
        • K(c);N_SPINP(e),S_FLIGHT::S(C)
        • S(a);N_GUARD::QAR2(E)
        • P(d);SBLOCK::S(C)
      • Refutation
        • S(a);
  • Actual
    • B(A);
    • Vars
      • S(a);CHECK,N_GUARD::QAR2(E),XS(a)
      • K(c);S_FLIGHT::S(C)
      • P(d);XB(A)::S(C)
      • S(a);SBLOCK::B(A),XP(d)
      • S(a);N_GUARD::QAR2(E)
      • P(d);::S(C)
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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).