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Problem Display

PID: 16285 (8/7p/6p1/3KpkB1/8/8/6Q1/7n w - - 0 1)

Shanahan, Ian

The Problemist, 2000

8/7p/6p1/3KpkB1/8/8/6Q1/7n

#2

3 + 5

SOLUTION

SOUND
Tries
- 1.Bc1?
  - threat
    - 2.Qf3#
    - 2.Qg5#
  - 1...Sg3
    - 2.Qf3#
  - 1...g5
    - 2.Qxg5#
  - 1...e4
    - 2.Qg5#
  - 1...h6
    - 2.Qf3#
  - 1...Kf6!
- 1.Bd2?
  - threat
    - 2.Qf3#
    - 2.Qg5#
  - 1...Sg3
    - 2.Qf3#
  - 1...g5
    - 2.Qxg5#
  - 1...e4
    - 2.Qg5#
  - 1...h6
    - 2.Qf3#
  - 1...Kf6!
- 1.Be3?
  - threat
    - 2.Qf3#
    - 2.Qg5#
  - 1...Sg3
    - 2.Qf3#
  - 1...g5
    - 2.Qxg5#
  - 1...e4
    - 2.Qg5#
  - 1...h6
    - 2.Qf3#
  - 1...Kf6!
- 1.Bh6?
  - threat
    - 2.Qf3#
    - 2.Qg5#
  - 1...Sg3
    - 2.Qf3#
  - 1...g5
    - 2.Qxg5#
  - 1...e4
    - 2.Qg5#
  - 1...Kf6!
- 1.Be7?
  - threat
    - 2.Qf3#
    - 2.Qe4#
    - 2.Qg5#
  - 1...Sg3
    - 2.Qf3#
  - 1...g5
    - 2.Qe4#
    - 2.Qxg5#
  - 1...Sf2
    - 2.Qf3#
    - 2.Qg5#
  - 1...e4
    - 2.Qxe4#
    - 2.Qg5#
  - 1...h6
    - 2.Qf3#
    - 2.Qe4#
  - 1...Kf4!
- 1.Bd8?
  - threat
    - 2.Qf3#
    - 2.Qe4#
    - 2.Qg5#
  - 1...Sg3
    - 2.Qf3#
  - 1...g5
    - 2.Qe4#
    - 2.Qxg5#
  - 1...Sf2
    - 2.Qf3#
    - 2.Qg5#
  - 1...e4
    - 2.Qxe4#
    - 2.Qg5#
  - 1...h6
    - 2.Qf3#
    - 2.Qe4#
  - 1...Kf4!
Keys
- 1.Bh4!
  - threat
    - 2.Qf3#
    - 2.Qe4#
    - 2.Qg5#
  - 1...Kf4
    - 2.Qe4#
  - 1...Sg3
    - 2.Qf3#
  - 1...g5
    - 2.Qxg5#
  - 1...Sf2
    - 2.Qf3#
    - 2.Qg5#
  - 1...e4
    - 2.Qxe4#
    - 2.Qg5#
  - 1...h6
    - 2.Qf3#
    - 2.Qe4#

FEATURES

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
Sets
Tries
- Try
  - B(C);
  - Threat
    - DUALS(2)
  - Vars
    - S(a);::QAR2(A)
    - P(d);::QAR1(A),XP(d)
    - P(b);::QAR1(A)
    - P(e);::QAR2(A)
  - Refutation
    - K(c);P-FLIGHT
- Try
  - B(C);
  - Threat
    - DUALS(2)
  - Vars
    - S(a);::QAR2(A)
    - P(d);::QAR1(A),XP(d)
    - P(b);::QAR1(A)
    - P(e);::QAR2(A)
  - Refutation
    - K(c);P-FLIGHT
- Try
  - B(C);
  - Threat
    - DUALS(2)
  - Vars
    - S(a);::QAR2(A)
    - P(d);::QAR1(A),XP(d)
    - P(b);::QAR1(A)
    - P(e);::QAR2(A)
  - Refutation
    - K(c);P-FLIGHT
- Try
  - B(C);
  - Threat
    - DUALS(2)
  - Vars
    - S(a);::QAR2(A)
    - P(d);::QAR1(A),XP(d)
    - P(b);::QAR1(A)
  - Refutation
    - K(c);P-FLIGHT
- Try
  - B(C);
  - Threat
    - DUALS(3)
  - Vars
    - S(a);::QAR2(A)
  - Refutation
    - K(c);P-FLIGHT
- Try
  - B(C);
  - Threat
    - DUALS(3)
  - Vars
    - S(a);::QAR2(A)
  - Refutation
    - K(c);P-FLIGHT
Actual
- B(C);
- Threat
  - DUALS(3)
- Vars
  - K(c);P-FLIGHT::QAR1(A)
  - S(a);::QAR2(A)
  - P(d);::QAR1(A),XP(d)

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).