Meson Chess Problem Database

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Problem Display

PID: 206308 (8/8/6B1/8/5N2/p3n3/K2B1R2/3k4 w - - 0 1)

Mari, Alberto

L'Italia Scacchistica, 1925

8/8/6B1/8/5N2/p3n3/K2B1R2/3k4

#2

5 + 3

6490	yacpdb	2020

SOLUTION

SOUND
Sets
- 1...Sc2
  - 2.Bh5#
Tries
- 1.Kb1?
  - 1...Sf1
    - 2.Bc2#
    - 2.Bh5#
  - 1...Sc2
    - 2.Bxc2#
    - 2.Bh5#
  - 1...Sg2
    - 2.Bc2#
    - 2.Bh5#
  - 1...Sc4
    - 2.Bc2#
    - 2.Bh5#
  - 1...Sg4
    - 2.Bc2#
  - 1...Sd5
    - 2.Bc2#
    - 2.Bh5#
  - 1...Sf5
    - 2.Bh5#
  - 1...a2+!
- 1.Kb3?
  - 1...Sf1
    - 2.Bc2#
    - 2.Bh5#
  - 1...Sc2
    - 2.Bxc2#
    - 2.Bh5#
  - 1...Sg2
    - 2.Bc2#
    - 2.Bh5#
  - 1...Sc4
    - 2.Bc2#
    - 2.Bh5#
  - 1...Sg4
    - 2.Bc2#
  - 1...Sd5
    - 2.Bc2#
    - 2.Bh5#
  - 1...Sf5
    - 2.Bh5#
  - 1...a2!
Keys
- 1.Be8!
  - 1...Kc2
    - 2.Ba4#
  - 1...Sf1
    - 2.Ba4#
  - 1...Sc2
    - 2.Bh5#
  - 1...Sg2
    - 2.Ba4#
  - 1...Sc4
    - 2.Ba4#
  - 1...Sg4
    - 2.Ba4#
  - 1...Sd5
    - 2.Ba4#
  - 1...Sf5
    - 2.Ba4#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
Sets
- S(c);N_GUARD,SBLOCK::B(E)
Tries
- Try
  - K(A);S_FLIGHT
  - Vars
    - S(c);N_GUARD::B(E)
  - Refutation
    - P(b);CHECK
- Try
  - K(A);S_FLIGHT
  - Vars
    - S(c);N_GUARD::B(E)
  - Refutation
    - P(b);
Actual
- B(E);
- Vars
  - K(a);S_FLIGHT::B(E)
  - S(c);N_GUARD::B(E)
  - S(c);N_GUARD,SBLOCK::B(E)

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).