MESON Chess Problem Database

Problem Display
PID: 175061 (7b/1p6/1N5p/2B1kpNK/5p2/Q1n2p2/2rP4/8 w - - 0 1)

Nemo, Ottmar (Weiss, Ottmar)

Bohemia, 1902

7b/1p6/1N5p/2B1kpNK/5p2/Q1n2p2/2rP4/8

#2

6 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Bd4#
    • 1...Ra2
      • 2.Qxc3#
    • 1...Rb2
      • 2.Qxc3#
    • 1...Bf6
      • 2.d4#
    • 1...Sd5
      • 2.Sd7#
  • Tries
    • 1.Sc4+?
      • 1...Kf6
        • 2.Bd4#
      • 1...Kd5!
    • 1.Bg1?
      • threat
        • 2.Qe7#
      • 1...Kf6
        • 2.Bd4#
      • 1...Bf6
        • 2.d4#
      • 1...Sd5
        • 2.Sd7#
      • 1...f2!
    • 1.Be3?
      • threat
        • 2.Qe7#
      • 1...Kf6
        • 2.Bd4#
      • 1...Bf6
        • 2.d4#
      • 1...Sd5
        • 2.Sd7#
      • 1...fxe3!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Qe7#
      • 1...Kf6
        • 2.Bd4#
      • 1...Bf6
        • 2.d4#
      • 1...Sd5
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(e);S_FLIGHT::B(C)
    • R(a);N_GUARD::QAB(B),XS(b)
    • B(i);SBLOCK::P(A)
    • S(b);SBLOCK::S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(e);S_FLIGHT::B(C)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • K(e);S_FLIGHT::B(C)
        • B(i);SBLOCK::P(A)
        • S(b);SBLOCK::S(F)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • K(e);S_FLIGHT::B(C)
        • B(i);SBLOCK::P(A)
        • S(b);SBLOCK::S(F)
      • Refutation
        • P(d);XB(C)
  • Actual
    • B(C);
    • Threat
      • QAR2(B)
    • Vars
      • K(e);S_FLIGHT::B(C)
      • B(i);SBLOCK::P(A)
      • S(b);SBLOCK::S(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).