Meson Chess Problem Database

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Problem Display

PID: 226415 (1K6/p7/1N1ppp1N/2PBk1P1/1p6/1P2P3/QPP5/8 w - - 0 1)

Apro, Laszlo

Hlas l'udu, 1981

1K6/p7/1N1ppp1N/2PBk1P1/1p6/1P2P3/QPP5/8

#2

11 + 6

15148	Sadier Collection	2020

SOLUTION

SOUND
Sets
- 1...f5
  - 2.Sf7#
Tries
- 1.Bh1?
  - threat
    - 2.Sc4#
    - 2.Sd7#
  - 1...dxc5
    - 2.Sc4#
  - 1...fxg5
    - 2.Sd7#
  - 1...d5
    - 2.Sd7#
  - 1...axb6!
- 1.Bg2?
  - threat
    - 2.Sc4#
    - 2.Sd7#
  - 1...dxc5
    - 2.Sc4#
  - 1...fxg5
    - 2.Sd7#
  - 1...d5
    - 2.Sd7#
  - 1...axb6!
- 1.Bf3?
  - threat
    - 2.Sc4#
    - 2.Sd7#
  - 1...dxc5
    - 2.Sc4#
  - 1...fxg5
    - 2.Sd7#
  - 1...d5
    - 2.Sd7#
  - 1...axb6!
Keys
- 1.Qxa7!
  - 1...dxc5
    - 2.Qc7#
  - 1...exd5
    - 2.Qe7#
  - 1...fxg5
    - 2.Qg7#
  - 1...f5
    - 2.Sf7#
    - 2.Qg7#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
Sets
- P(e);SBLOCK::S(J)
Tries
- Try
  - B(G);
  - Threat
    - DUALS(2)
  - Vars
    - P(c);XP(F)::S(I)
    - P(e);XP(H)::S(I)
    - P(c);::S(I)
  - Refutation
    - P(f);XS(I)
- Try
  - B(G);
  - Threat
    - DUALS(2)
  - Vars
    - P(c);XP(F)::S(I)
    - P(e);XP(H)::S(I)
    - P(c);::S(I)
  - Refutation
    - P(f);XS(I)
- Try
  - B(G);
  - Threat
    - DUALS(2)
  - Vars
    - P(c);XP(F)::S(I)
    - P(e);XP(H)::S(I)
    - P(c);::S(I)
  - Refutation
    - P(f);XS(I)
Actual
- Q(A);XP(f)
- Vars
  - P(c);OGATEB,XP(F)::QAB(A)
  - P(d);OGATEB,XB(G)::QAR2(A)
  - P(e);OGATEB,XP(H)::QAB(A)

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).