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Problem Display

PID: 24750 (6K1/P1B5/4N3/1P1k2N1/r1R3p1/3P2p1/2r1B1n1/3Rb3 w - - 0 1)

Shinkman, William Anthony

Milwaukee Telegraph, 1883

6K1/P1B5/4N3/1P1k2N1/r1R3p1/3P2p1/2r1B1n1/3Rb3

#2

10 + 7

3925	The Golden Argosy	1929

SOLUTION

SOUND
Sets
- 1...Rca2
  - 2.Rc5#
- 1...Rb2
  - 2.Rc5#
- 1...Rd2
  - 2.Rc5#
- 1...Rxe2
  - 2.Rc5#
- 1...Rcxc4
  - 2.dxc4#
- 1...Ra1
  - 2.Rd4#
- 1...Raa2
  - 2.Rd4#
- 1...Ra3
  - 2.Rd4#
- 1...Rb4
  - 2.a8Q#
  - 2.a8B#
- 1...Raxc4
  - 2.dxc4#
- 1...Ra5
  - 2.Rd4#
- 1...Ra6
  - 2.Rd4#
- 1...Rxa7
  - 2.Rd4#
- 1...Bc3
  - 2.Rc5#
- 1...Bb4
  - 2.Rd4#
- 1...Ba5
  - 2.a8Q#
  - 2.a8B#
- 1...Se3
  - 2.Sf4#
- 1...Sf4
  - 2.Sxf4#
- 1...Sh4
  - 2.Sf4#
Tries
- 1.Bf4?
  - threat
    - 2.Sc7#
  - 1...Rcxc4
    - 2.dxc4#
  - 1...Raxc4
    - 2.dxc4#
  - 1...Rxa7
    - 2.Rd4#
  - 1...Ba5
    - 2.a8Q#
    - 2.a8B#
  - 1...Sxf4!
- 1.a8R?
  - threat
    - 2.Rd8#
  - 1...Ra6
    - 2.Rd4#
  - 1...Bb4
    - 2.Rd4#
  - 1...Rxa8+!
Keys
- 1.Bf1!
  - 1...Rcxc4
    - 2.dxc4#
  - 1...Raxc4
    - 2.dxc4#
  - 1...Rxa7
    - 2.Rd4#
  - 1...Rc1
    - 2.Bxg2#
  - 1...Rca2
    - 2.Rc5#
  - 1...Rb2
    - 2.Rc5#
  - 1...Rd2
    - 2.Rc5#
  - 1...Re2
    - 2.Rc5#
  - 1...Rf2
    - 2.Rc5#
  - 1...Rc3
    - 2.Bxg2#
  - 1...Ra1
    - 2.Rd4#
  - 1...Raa2
    - 2.Rd4#
  - 1...Ra3
    - 2.Rd4#
  - 1...Rb4
    - 2.a8Q#
    - 2.a8B#
  - 1...Ra5
    - 2.Rd4#
  - 1...Ra6
    - 2.Rd4#
  - 1...Bd2
    - 2.Bxg2#
  - 1...Bf2
    - 2.Bxg2#
  - 1...Bc3
    - 2.Rc5#
  - 1...Bb4
    - 2.Rd4#
  - 1...Ba5
    - 2.a8Q#
    - 2.a8B#
  - 1...Se3
    - 2.Sf4#
  - 1...Sf4
    - 2.Sxf4#
  - 1...Sh4
    - 2.Sf4#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
Sets
- R(b);N_GUARD::R1(D)
- R(b);N_GUARD,XB(B)::R1(D)
- R(b);OGATE,XR(D)::R(A)+P(C)DCHECK,XR(b)
- R(e);N_GUARD::R1(D)
- R(e);N_GUARD::P=Q
- R(e);OGATE,XR(D)::R(A)+P(C)DCHECK,XR(e)
- R(e);N_GUARD,XP(H)::R1(D)
- B(a);S_CUTR(b)::R1(D)
- B(a);S_CUTR(e)::R1(D)
- B(a);S_CUTR(e)::P=Q
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
Tries
- Try
  - B(I);
  - Threat
    - S(G)
  - Vars
    - R(b);OGATE,XR(D)::R(A)+P(C)DCHECK,XR(b)
    - R(e);OGATE,XR(D)::R(A)+P(C)DCHECK,XR(e)
    - R(e);N_GUARD,XP(H)::R1(D)
    - B(a);S_CUTR(e)::P=Q
  - Refutation
    - S(c);XB(I)
- Try
  - P(H);
  - Threat
    - R(H)
  - Vars
    - R(e);N_GUARD::R1(D)
    - B(a);S_CUTR(e)::R1(D)
  - Refutation
    - R(e);CHECK,XR(H)
Actual
- B(B);
- Vars
  - R(b);OGATE,XR(D)::R(A)+P(C)DCHECK,XR(b)
  - R(e);OGATE,XR(D)::R(A)+P(C)DCHECK,XR(e)
  - R(e);N_GUARD,XP(H)::R1(D)
  - R(b);N_GUARD::B(B),XS(c)
  - R(b);N_GUARD::R1(D)
  - R(e);N_GUARD::R1(D)
  - R(e);N_GUARD::P=Q
  - B(a);S_CUTR(b)::B(B),XS(c)
  - B(a);S_CUTR(b)::R1(D)
  - B(a);S_CUTR(e)::R1(D)
  - B(a);S_CUTR(e)::P=Q
  - S(c);N_GUARD::S(G)
  - S(c);N_GUARD::S(G),XS(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).