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Problem Display

PID: 23104 (8/8/6K1/8/4p2Q/8/3N2k1/5Nb1 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/8/6K1/8/4p2Q/8/3N2k1/5Nb1

#2

4 + 3

SOLUTION

SOUND
Sets
- 1...Bf2
  - 2.Qh2#
- 1...Bh2
  - 2.Qxh2#
- 1...Be3
  - 2.Qh2#
- 1...Bd4
  - 2.Qh2#
- 1...Bc5
  - 2.Qh2#
- 1...Bb6
  - 2.Qh2#
- 1...Ba7
  - 2.Qh2#
Tries
- 1.Kf5?
  - 1...Bf2
    - 2.Qh2#
  - 1...Bh2
    - 2.Qxh2#
  - 1...Be3
    - 2.Qh2#
  - 1...Bd4
    - 2.Qh2#
  - 1...Bc5
    - 2.Qh2#
  - 1...Bb6
    - 2.Qh2#
  - 1...Ba7
    - 2.Qh2#
  - 1...e3!
- 1.Kh5?
  - 1...Bf2
    - 2.Qh2#
  - 1...Bh2
    - 2.Qxh2#
  - 1...Be3
    - 2.Qh2#
  - 1...Bd4
    - 2.Qh2#
  - 1...Bc5
    - 2.Qh2#
  - 1...Bb6
    - 2.Qh2#
  - 1...Ba7
    - 2.Qh2#
  - 1...e3!
- 1.Kf7?
  - 1...Bf2
    - 2.Qh2#
  - 1...Bh2
    - 2.Qxh2#
  - 1...Be3
    - 2.Qh2#
  - 1...Bd4
    - 2.Qh2#
  - 1...Bc5
    - 2.Qh2#
  - 1...Bb6
    - 2.Qh2#
  - 1...Ba7
    - 2.Qh2#
  - 1...e3!
- 1.Kh7?
  - 1...Bf2
    - 2.Qh2#
  - 1...Bh2
    - 2.Qxh2#
  - 1...Be3
    - 2.Qh2#
  - 1...Bd4
    - 2.Qh2#
  - 1...Bc5
    - 2.Qh2#
  - 1...Bb6
    - 2.Qh2#
  - 1...Ba7
    - 2.Qh2#
  - 1...e3!
- 1.Qg4+?
  - 1...Kh1
    - 2.Qxe4#
  - 1...Kf2!
- 1.Qh5?
  - 1...Bh2
    - 2.Qxh2#
  - 1...Be3
    - 2.Qh2#
  - 1...Bd4
    - 2.Qh2#
  - 1...Bc5
    - 2.Qh2#
  - 1...Bb6
    - 2.Qh2#
  - 1...Ba7
    - 2.Qh2#
  - 1...e3
    - 2.Qf3#
  - 1...Bf2
    - 2.Qh2#
  - 1...Kf2!
Keys
- 1.Qf4!
  - 1...Kh1
    - 2.Qxe4#
  - 1...Kh3
    - 2.Qg3#
  - 1...Bf2
    - 2.Qh2#
  - 1...Bh2
    - 2.Qxh2#
  - 1...Be3
    - 2.Qh2#
  - 1...Bd4
    - 2.Qh2#
  - 1...Bc5
    - 2.Qh2#
  - 1...Bb6
    - 2.Qh2#
  - 1...Ba7
    - 2.Qh2#
  - 1...e3
    - 2.Qf3#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
Sets
- B(a);N_GUARD,SBLOCK::QAR1(C)
- B(a);N_GUARD::QAR1(C),XB(a)
- B(a);N_GUARD::QAR1(C)
Tries
- Try
  - K(D);S_FLIGHT
  - Vars
    - B(a);N_GUARD,SBLOCK::QAR1(C)
    - B(a);N_GUARD::QAR1(C),XB(a)
    - B(a);N_GUARD::QAR1(C)
  - Refutation
    - P(c);
- Try
  - K(D);S_FLIGHT
  - Vars
    - B(a);N_GUARD,SBLOCK::QAR1(C)
    - B(a);N_GUARD::QAR1(C),XB(a)
    - B(a);N_GUARD::QAR1(C)
  - Refutation
    - P(c);
- Try
  - K(D);S_FLIGHT
  - Vars
    - B(a);N_GUARD,SBLOCK::QAR1(C)
    - B(a);N_GUARD::QAR1(C),XB(a)
    - B(a);N_GUARD::QAR1(C)
  - Refutation
    - P(c);
- Try
  - K(D);S_FLIGHT
  - Vars
    - B(a);N_GUARD,SBLOCK::QAR1(C)
    - B(a);N_GUARD::QAR1(C),XB(a)
    - B(a);N_GUARD::QAR1(C)
  - Refutation
    - P(c);
- Try
  - Q(C);CHECK
  - Vars
    - K(b);S_FLIGHT::QAB(C),XP(c)
  - Refutation
    - K(b);P-FLIGHT
- Try
  - Q(C);
  - Vars
    - B(a);N_GUARD::QAR1(C),XB(a)
    - B(a);N_GUARD::QAR1(C)
    - P(c);N_GUARD::QAB1(C)
    - B(a);N_GUARD,SBLOCK::QAR1(C)
  - Refutation
    - K(b);P-FLIGHT
Actual
- Q(C);
- Vars
  - K(b);S_FLIGHT::QAB(C),XP(c)
  - K(b);S_FLIGHT::QAR1(C)
  - B(a);N_GUARD,SBLOCK::QAR1(C)
  - B(a);N_GUARD::QAR1(C),XB(a)
  - B(a);N_GUARD::QAR1(C)
  - P(c);N_GUARD::QAB1(C)

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).