Meson Chess Problem Database

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Problem Display

PID: 138 (NK1B4/1pP5/k1N5/8/2P5/8/8/8 w - - 0 1)

Neukomm, Gyula (Julius) R

Xadrez Brasileiro, 1930

NK1B4/1pP5/k1N5/8/2P5/8/8/8

#2

6 + 2

SOLUTION

SOUND
Sets
- 1...bxc6
  - 2.c8Q#
  - 2.c8B#
- 1...b5
  - 2.c8Q#
  - 2.c8B#
- 1...b6
  - 2.c8Q#
  - 2.c8B#
Tries
- 1.Bh4?
  - 1...b6
    - 2.c8Q#
    - 2.c8B#
  - 1...b5
    - 2.c8Q#
    - 2.c8B#
  - 1...bxc6!
- 1.Bg5?
  - 1...b6
    - 2.c8Q#
    - 2.c8B#
  - 1...b5
    - 2.c8Q#
    - 2.c8B#
  - 1...bxc6!
- 1.Bf6?
  - 1...b6
    - 2.c8Q#
    - 2.c8B#
  - 1...b5
    - 2.c8Q#
    - 2.c8B#
  - 1...bxc6!
- 1.Be7?
  - 1...b6
    - 2.c8Q#
    - 2.c8B#
  - 1...b5
    - 2.c8Q#
    - 2.c8B#
  - 1...bxc6!
- 1.c8S?
  - threat
    - 2.Sb4#
    - 2.Sc7#
  - 1...b6
    - 2.Sc7#
  - 1...bxc6!
Keys
- 1.c8R!
  - threat
    - 2.Sb4#
  - 1...bxc6
    - 2.Rxc6#
  - 1...b6
    - 2.Sc7#

FEATURES

Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
Sets
- P(b);XS(B)::P=Q
- P(b);::P=Q
Tries
- Try
  - B(F);
  - Vars
    - P(b);::P=Q
  - Refutation
    - P(b);XS(B)
- Try
  - B(F);
  - Vars
    - P(b);::P=Q
  - Refutation
    - P(b);XS(B)
- Try
  - B(F);
  - Vars
    - P(b);::P=Q
  - Refutation
    - P(b);XS(B)
- Try
  - B(F);
  - Vars
    - P(b);::P=Q
  - Refutation
    - P(b);XS(B)
- Try
  - P(C);
  - Threat
    - DUALS(2)
  - Vars
    - P(b);::S(D)
  - Refutation
    - P(b);XS(B)
Actual
- P(C);
- Threat
  - S(B)
- Vars
  - P(b);OGATE,XS(B)::R(C),XP(b)
  - P(b);SBLOCK::S(D)

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).