Meson Chess Problem Database

Home
Latest Additions
- #2
- #3
- #4
- #5
- Stats
Books
- All composers (SLOW)
- By initial letter
Magazines
- PID
- General
- Matrix
- All sources/quoters (SLOW)
- By initial letter
- Awards
- Composers
- Decades
- Quoters
- Sizes
- Soundness
- Sources
- Stipulations
- Years
Contact
Back to BDS Website

Problem Display

PID: 193746 (8/5K2/3p3B/3ppk1B/p2pN3/q7/6P1/8 w - - 0 1)

Fiala, Karel

Casopis ceskoslovenskych sachistu, 1916

8/5K2/3p3B/3ppk1B/p2pN3/q7/6P1/8

#2

5 + 7

6490	yacpdb	2019

SOLUTION

SOUND
Sets
- 1...Kxe4
  - 2.Bg6#
- 1...Qc1
  - 2.Sg3#
  - 2.Sxd6#
- 1...Qb2
  - 2.Sg3#
  - 2.Sxd6#
- 1...Qb4
  - 2.Sg3#
- 1...Qc5
  - 2.Sg3#
- 1...Qa1
  - 2.Sg3#
  - 2.Sxd6#
- 1...Qa2
  - 2.Sg3#
  - 2.Sxd6#
- 1...Qb3
  - 2.Sxd6#
- 1...Qc3
  - 2.Sxd6#
- 1...Qd3
  - 2.Sxd6#
- 1...Qe3
  - 2.Sxd6#
- 1...Qf3
  - 2.Sxd6#
- 1...Qg3
  - 2.Sxg3#
  - 2.Sxd6#
- 1...Qh3
  - 2.Sxd6#
- 1...d3
  - 2.Sg3#
- 1...dxe4
  - 2.g4#
Tries
- 1.Bf3?
  - threat
    - 2.Sg3#
    - 2.g4#
  - 1...dxe4
    - 2.g4#
  - 1...Qxf3!
- 1.Bd2?
  - 1...Kxe4
    - 2.Bg6#
  - 1...dxe4
    - 2.g4#
  - 1...Qc1
    - 2.Sg3#
    - 2.Sxd6#
  - 1...Qb2
    - 2.Sg3#
    - 2.Sxd6#
  - 1...Qb4
    - 2.Sg3#
  - 1...Qc5
    - 2.Sg3#
  - 1...Qa1
    - 2.Sg3#
    - 2.Sxd6#
  - 1...Qa2
    - 2.Sg3#
    - 2.Sxd6#
  - 1...Qb3
    - 2.Sxd6#
  - 1...Qc3
    - 2.Sxd6#
  - 1...Qd3
    - 2.Sxd6#
  - 1...Qf3
    - 2.Sxd6#
  - 1...Qg3
    - 2.Sxg3#
    - 2.Sxd6#
  - 1...Qh3
    - 2.Sxd6#
  - 1...d3
    - 2.Sg3#
  - 1...Qe3!
Keys
- 1.Ke7!
  - 1...Kxe4
    - 2.Bg6#
  - 1...dxe4
    - 2.g4#
  - 1...Qc1
    - 2.Sg3#
    - 2.Sxd6#
  - 1...Qb2
    - 2.Sg3#
    - 2.Sxd6#
  - 1...Qb4
    - 2.Sg3#
  - 1...Qc5
    - 2.Sg3#
  - 1...Qa1
    - 2.Sg3#
    - 2.Sxd6#
  - 1...Qa2
    - 2.Sg3#
    - 2.Sxd6#
  - 1...Qb3
    - 2.Sxd6#
  - 1...Qc3
    - 2.Sxd6#
  - 1...Qd3
    - 2.Sxd6#
  - 1...Qe3
    - 2.Sxd6#
  - 1...Qf3
    - 2.Sxd6#
  - 1...Qg3
    - 2.Sxg3#
    - 2.Sxd6#
  - 1...Qh3
    - 2.Sxd6#
  - 1...d3
    - 2.Sg3#

FEATURES

Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
Sets
- K(f);S_FLIGHT,XS(B)::B(C)
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD::S(B),XP(g)
- P(c);S_CUTQ(a)::S(B)
- P(d);SBLOCK,XS(B)::P(A)
Tries
- Try
  - B(C);
  - Threat
    - DUALS(2)
  - Vars
    - P(d);XS(B)::P(A)
  - Refutation
    - Q(a);XB(C)
- Try
  - B(D);
  - Vars
    - K(f);S_FLIGHT,XS(B)::B(C)
    - P(d);SBLOCK,XS(B)::P(A)
    - Q(a);N_GUARD::S(B)
    - Q(a);N_GUARD::S(B),XP(g)
    - P(c);S_CUTQ(a)::S(B)
  - Refutation
    - Q(a);
Actual
- K(E);P-FLIGHT
- Vars
  - K(f);S_FLIGHT,XS(B)::B(C)
  - P(d);SBLOCK,XS(B)::P(A)
  - Q(a);N_GUARD::S(B)
  - Q(a);N_GUARD::S(B),XP(g)
  - P(c);S_CUTQ(a)::S(B)

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).