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Problem Display

PID: 150404 (8/8/8/1p6/1P1K4/RR6/bnB5/k7 w - - 0 1)

Dawson, Thomas Rayner

Pittsburgh Sun, 1924

(First published on Sat Nov 29 1924)

8/8/8/1p6/1P1K4/RR6/bnB5/k7

#2

5 + 4

15256	TRD Scrapbook	2014

SOLUTION

SOUND
Sets
- 1...Sd1
  - 2.Rb1#
- 1...Sd3
  - 2.Rb1#
- 1...Sa4
  - 2.Rb1#
- 1...Sc4
  - 2.Rb1#
Tries
- 1.Bb1?
  - 1...Sd1
    - 2.Rxa2#
  - 1...Sd3
    - 2.Rxa2#
  - 1...Sa4
    - 2.Rxa2#
  - 1...Sc4
    - 2.Rxa2#
  - 1...Kxb1!
- 1.Bd3?
  - 1...Sd1
    - 2.Rb1#
  - 1...Sa4
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sxd3!
- 1.Be4?
  - 1...Sd1
    - 2.Rb1#
  - 1...Sa4
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sd3!
- 1.Bf5?
  - 1...Sd1
    - 2.Rb1#
  - 1...Sa4
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sd3!
- 1.Bg6?
  - 1...Sd1
    - 2.Rb1#
  - 1...Sa4
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sd3!
- 1.Bh7?
  - 1...Sd1
    - 2.Rb1#
  - 1...Sa4
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sd3!
- 1.Ra5?
  - 1...Sd3
    - 2.Rb1#
  - 1...Sd1
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sa4!
- 1.Ra6?
  - 1...Sd3
    - 2.Rb1#
  - 1...Sd1
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sa4!
- 1.Ra7?
  - 1...Sd3
    - 2.Rb1#
  - 1...Sd1
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sa4!
- 1.Ra8?
  - 1...Sd3
    - 2.Rb1#
  - 1...Sd1
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#
  - 1...Sa4!
Keys
- 1.Ke4!
  - 1...Sd1
    - 2.Rb1#
  - 1...Sd3
    - 2.Rb1#
  - 1...Sa4
    - 2.Rb1#
  - 1...Sc4
    - 2.Rb1#

FEATURES

Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
Sets
- S(c);OGATE::R1(C)
Tries
- Try
  - B(A);
  - Vars
    - S(c);::R1(B),XB(b)
  - Refutation
    - K(a);N_SPINB(b),P-FLIGHT,P_SPINS(c),XB(A)
- Try
  - B(A);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);XB(A)
- Try
  - B(A);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);
- Try
  - B(A);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);
- Try
  - B(A);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);
- Try
  - B(A);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);
- Try
  - R(B);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);N_SPINB(b)
- Try
  - R(B);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);N_SPINB(b)
- Try
  - R(B);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);N_SPINB(b)
- Try
  - R(B);
  - Vars
    - S(c);OGATE::R1(C)
  - Refutation
    - S(c);N_SPINB(b)
Actual
- K(E);P-FLIGHT
- Vars
  - S(c);OGATE::R1(C)

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