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Problem Display

PID: 7734 (1n6/2p2Np1/1pp1Qb2/8/1Ppk3r/4p3/2K3B1/8 w - - 0 1)

Rothwell, Stephen

Kieler Nachrichten, 1993

1n6/2p2Np1/1pp1Qb2/8/1Ppk3r/4p3/2K3B1/8

#2

5 + 10

6113	Problemschach-Jahrbuch (1993)	1994

SOLUTION

SOUND
Sets
- 1...Rh1
  - 2.Qg4#
  - 2.Qe4#
- 1...Rh2
  - 2.Qg4#
  - 2.Qe4#
- 1...Rh3
  - 2.Qg4#
  - 2.Qe4#
- 1...Re4
  - 2.Qxe4#
- 1...Rg4
  - 2.Qxg4#
- 1...Rh5
  - 2.Qg4#
  - 2.Qe4#
- 1...Rh6
  - 2.Qg4#
  - 2.Qe4#
- 1...Rh7
  - 2.Qg4#
  - 2.Qe4#
- 1...Rh8
  - 2.Qg4#
  - 2.Qe4#
- 1...Be5
  - 2.Qxe5#
- 1...Bg5
  - 2.Qe5#
- 1...Be7
  - 2.Qe5#
- 1...Bd8
  - 2.Qe5#
- 1...Sa6
  - 2.Qd7#
- 1...Sd7
  - 2.Qxd7#
- 1...c5
  - 2.Qd5#
- 1...g5
  - 2.Qxf6#
- 1...g6
  - 2.Qxf6#
Tries
- 1.Sd6?
  - threat
    - 2.Sf5#
  - 1...cxd6
    - 2.Qxd6#
  - 1...Rh5
    - 2.Qe4#
  - 1...g6
    - 2.Qxf6#
  - 1...Rf4!
- 1.Sh6?
  - threat
    - 2.Sf5#
  - 1...Rxh6
    - 2.Qe4#
  - 1...gxh6
    - 2.Qxf6#
  - 1...Rh5
    - 2.Qe4#
  - 1...g6
    - 2.Qxf6#
  - 1...Rf4!
Keys
- 1.Qf5!
  - 1...e2
    - 2.Qf2#
  - 1...c3
    - 2.Qd3#
  - 1...Rf4
    - 2.Qxf4#
  - 1...Rh1
    - 2.Qe4#
    - 2.Qg4#
    - 2.Qf4#
  - 1...Rh2
    - 2.Qe4#
    - 2.Qg4#
    - 2.Qf4#
  - 1...Rh3
    - 2.Qe4#
    - 2.Qg4#
    - 2.Qf4#
  - 1...Re4
    - 2.Qxe4#
  - 1...Rg4
    - 2.Qxg4#
  - 1...Rh5
    - 2.Qe4#
    - 2.Qg4#
    - 2.Qf4#
  - 1...Rh6
    - 2.Qe4#
    - 2.Qg4#
    - 2.Qf4#
  - 1...Rh7
    - 2.Qe4#
    - 2.Qg4#
    - 2.Qf4#
  - 1...Rh8
    - 2.Qe4#
    - 2.Qg4#
    - 2.Qf4#
  - 1...Be5
    - 2.Qxe5#
  - 1...Bg5
    - 2.Qe5#
  - 1...Be7
    - 2.Qe5#
  - 1...Bd8
    - 2.Qe5#
  - 1...Sa6
    - 2.Qd7#
  - 1...Sd7
    - 2.Qxd7#
  - 1...b5
    - 2.Qc5#
  - 1...c5
    - 2.Qd5#
  - 1...g5
    - 2.Qxf6#
  - 1...g6
    - 2.Qxf6#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
Sets
- R(d);N_GUARD::QAR1(D),XR(d)
- R(d);N_GUARD::QAR(D),XR(d)
- B(g);N_GUARD::QAB1(D),XB(g)
- B(g);N_GUARD::QAB1(D)
- S(j);N_GUARD::QAR(D)
- S(j);N_GUARD::QAR(D),XS(j)
- P(f);N_GUARD::QAR1(D)
- P(i);N_GUARD::QAB(D),XB(g)
Tries
- Try
  - S(E);
  - Threat
    - S(E)
  - Vars
    - P(h);OGATE,XS(E)::QAR2(D),XP(h)
    - R(d);N_GUARD::QAR1(D)
    - P(i);N_GUARD::QAB(D),XB(g)
  - Refutation
    - R(d);
- Try
  - S(E);
  - Threat
    - S(E)
  - Vars
    - R(d);N_GUARD,XS(E)::QAR1(D)
    - P(i);N_GUARD,XS(E)::QAB(D),XB(g)
    - R(d);N_GUARD::QAR1(D)
    - P(i);N_GUARD::QAB(D),XB(g)
  - Refutation
    - R(d);
Actual
- Q(D);
- Vars
  - P(a);OGATEB::QAB(D)
  - P(b);N_GUARD::QAR1(D)
  - R(d);N_GUARD::QAR2(D),XR(d)
  - R(d);N_GUARD::QAR1(D),XR(d)
  - R(d);N_GUARD::QAR(D),XR(d)
  - B(g);N_GUARD::QAB1(D),XB(g)
  - B(g);N_GUARD::QAB1(D)
  - S(j);N_GUARD::QAR(D)
  - S(j);N_GUARD::QAR(D),XS(j)
  - P(e);N_GUARD::QAB1(D)
  - P(f);N_GUARD::QAR1(D)
  - P(i);N_GUARD::QAB(D),XB(g)

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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).