Meson Chess Problem Database

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Problem Display

PID: 187921 (1n6/1Q1b4/p1pP4/Rp6/1B6/8/1kP5/N5RK w - - 0 1)

van Dijk, Johannes

Schaakblad, 1910

1n6/1Q1b4/p1pP4/Rp6/1B6/8/1kP5/N5RK

#2

8 + 6

6490	yacpdb	2019

SOLUTION

SOUND
Sets
- 1...Bh3
  - 2.Qg7#
- 1...Bg4
  - 2.Qg7#
- 1...Bf5
  - 2.Qg7#
- 1...Be6
  - 2.Qg7#
- 1...Bc8
  - 2.Qg7#
- 1...Be8
  - 2.Qg7#
Tries
- 1.Kh2?
  - 1...Bh3
    - 2.Qg7#
  - 1...Bg4
    - 2.Qg7#
  - 1...Bf5
    - 2.Qg7#
  - 1...Be6
    - 2.Qg7#
  - 1...Bc8
    - 2.Qg7#
  - 1...Be8
    - 2.Qg7#
  - 1...c5!
- 1.Bd2?
  - 1...Bh3
    - 2.Qg7#
  - 1...Bg4
    - 2.Qg7#
  - 1...Bf5
    - 2.Qg7#
  - 1...Be6
    - 2.Qg7#
  - 1...Bc8
    - 2.Qg7#
  - 1...Be8
    - 2.Qg7#
  - 1...b4
    - 2.Qxb4#
  - 1...c5!
- 1.Rd1?
  - 1...Bh3
    - 2.Qg7#
  - 1...Bg4
    - 2.Qg7#
  - 1...Bf5
    - 2.Qg7#
  - 1...Be6
    - 2.Qg7#
  - 1...Bc8
    - 2.Qg7#
  - 1...Be8
    - 2.Qg7#
  - 1...c5!
- 1.Re1?
  - 1...Bh3
    - 2.Qg7#
  - 1...Bg4
    - 2.Qg7#
  - 1...Bf5
    - 2.Qg7#
  - 1...Be6
    - 2.Qg7#
  - 1...Bc8
    - 2.Qg7#
  - 1...Be8
    - 2.Qg7#
  - 1...c5!
- 1.Rf1?
  - 1...Bh3
    - 2.Qg7#
  - 1...Bg4
    - 2.Qg7#
  - 1...Bf5
    - 2.Qg7#
  - 1...Be6
    - 2.Qg7#
  - 1...Bc8
    - 2.Qg7#
  - 1...Be8
    - 2.Qg7#
  - 1...c5!
- 1.Qc7?
  - 1...Bh3
    - 2.Qg7#
  - 1...Bg4
    - 2.Qg7#
  - 1...Bf5
    - 2.Qg7#
  - 1...Be6
    - 2.Qg7#
  - 1...Bc8
    - 2.Qg7#
  - 1...Be8
    - 2.Qg7#
  - 1...c5!
Keys
- 1.c4!
  - 1...bxc4
    - 2.Bd2#
  - 1...c5
    - 2.Qg2#
  - 1...Bh3
    - 2.Qg7#
  - 1...Bg4
    - 2.Qg7#
  - 1...Bf5
    - 2.Qg7#
  - 1...Be6
    - 2.Qg7#
  - 1...Bc8
    - 2.Qg7#
  - 1...Be8
    - 2.Qg7#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
Sets
- B(e);OGATE::QAB(H)
Tries
- Try
  - K(C);P-FLIGHT
  - Vars
    - B(e);OGATE::QAB(H)
  - Refutation
    - P(d);
- Try
  - B(E);P_PINP(b)
  - Vars
    - B(e);OGATE::QAB(H)
    - P(b);OGATE::QAR2(H),XP(b)
  - Refutation
    - P(d);
- Try
  - R(B);
  - Vars
    - B(e);OGATE::QAB(H)
  - Refutation
    - P(d);
- Try
  - R(B);
  - Vars
    - B(e);OGATE::QAB(H)
  - Refutation
    - P(d);
- Try
  - R(B);
  - Vars
    - B(e);OGATE::QAB(H)
  - Refutation
    - P(d);
- Try
  - Q(H);
  - Vars
    - B(e);OGATE::QAB(H)
  - Refutation
    - P(d);
Actual
- P(D);
- Vars
  - P(b);OGATEB,XP(D)::QAR(H)+B(E)
  - P(d);OGATE::QAR(H)
  - B(e);OGATE::QAB(H)

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).