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Problem Display

PID: 193889 (8/p3p3/B1pbP3/1ppR4/NPk1P1n1/p1P1p3/2K5/5N2 w - - 0 1)

Mortriner, Lucius

Our Young People, 1916

8/p3p3/B1pbP3/1ppR4/NPk1P1n1/p1P1p3/2K5/5N2

#2

9 + 10

6490	yacpdb	2019

SOLUTION

SOUND
Sets
- 1...Bh2
  - 2.Rxc5#
- 1...Bg3
  - 2.Rxc5#
- 1...Bf4
  - 2.Rxc5#
- 1...Be5
  - 2.Rxc5#
- 1...Bc7
  - 2.Rxc5#
- 1...Bb8
  - 2.Rxc5#
- 1...Sf2
  - 2.Sxe3#
- 1...Sh2
  - 2.Sxe3#
- 1...Se5
  - 2.Sxe3#
- 1...Sf6
  - 2.Sxe3#
- 1...Sh6
  - 2.Sxe3#
- 1...a2
  - 2.Sb2#
- 1...e2
  - 2.Sd2#
- 1...cxb4
  - 2.Rd4#
Tries
- 1.Bc8?
  - 1...bxa4
    - 2.Ba6#
  - 1...cxb4
    - 2.Rd4#
  - 1...Bh2
    - 2.Rxc5#
  - 1...Bg3
    - 2.Rxc5#
  - 1...Bf4
    - 2.Rxc5#
  - 1...Be5
    - 2.Rxc5#
  - 1...Bc7
    - 2.Rxc5#
  - 1...Bb8
    - 2.Rxc5#
  - 1...Sf2
    - 2.Sxe3#
  - 1...Sh2
    - 2.Sxe3#
  - 1...Se5
    - 2.Sxe3#
  - 1...Sf6
    - 2.Sxe3#
  - 1...Sh6
    - 2.Sxe3#
  - 1...a2
    - 2.Sb2#
  - 1...e2
    - 2.Sd2#
  - 1...a5
    - 2.Sb6#
  - 1...a6
    - 2.Sb6#
  - 1...cxd5!
- 1.Rxd6?
  - 1...cxb4
    - 2.Rd4#
    - 2.Rxc6#
  - 1...Sf2
    - 2.Sxe3#
  - 1...Sh2
    - 2.Sxe3#
  - 1...Se5
    - 2.Sxe3#
  - 1...Sf6
    - 2.Sxe3#
  - 1...Sh6
    - 2.Sxe3#
  - 1...a2
    - 2.Sb2#
  - 1...e2
    - 2.Sd2#
  - 1...exd6!
Keys
- 1.Bb7!
  - 1...bxa4
    - 2.Ba6#
  - 1...cxb4
    - 2.Rd4#
  - 1...cxd5
    - 2.Bxd5#
  - 1...Bh2
    - 2.Rxc5#
  - 1...Bg3
    - 2.Rxc5#
  - 1...Bf4
    - 2.Rxc5#
  - 1...Be5
    - 2.Rxc5#
  - 1...Bc7
    - 2.Rxc5#
  - 1...Bb8
    - 2.Rxc5#
  - 1...Sf2
    - 2.Sxe3#
  - 1...Sh2
    - 2.Sxe3#
  - 1...Se5
    - 2.Sxe3#
  - 1...Sf6
    - 2.Sxe3#
  - 1...Sh6
    - 2.Sxe3#
  - 1...a2
    - 2.Sb2#
  - 1...e2
    - 2.Sd2#
  - 1...a5
    - 2.Sb6#
  - 1...a6
    - 2.Sb6#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
Sets
- B(h);N_GUARD::R1(G),XP(f)
- S(d);N_GUARD::S(A),XP(b)
- P(a);N_GUARD::S(D)
- P(b);N_GUARD::S(A)
- P(f);N_GUARD,XP(E)::R1(G)
Tries
- Try
  - B(H);N_PINP(e)
  - Vars
    - P(e);OGATEB,XS(D)::B(H)
    - P(f);N_GUARD,XP(E)::R1(G)
    - B(h);N_GUARD::R1(G),XP(f)
    - S(d);N_GUARD::S(A),XP(b)
    - P(a);N_GUARD::S(D)
    - P(b);N_GUARD::S(A)
    - P(i);N_GUARD::S(D)
  - Refutation
    - P(g);XR(G)
- Try
  - R(G);XB(h)
  - Vars
    - S(d);N_GUARD::S(A),XP(b)
    - P(a);N_GUARD::S(D)
    - P(b);N_GUARD::S(A)
  - Refutation
    - P(j);XR(G)
Actual
- B(H);N_PINP(e)
- Vars
  - P(e);OGATEB,XS(D)::B(H)
  - P(f);N_GUARD,XP(E)::R1(G)
  - P(g);OGATE,XR(G)::B(H),XP(g)
  - B(h);N_GUARD::R1(G),XP(f)
  - S(d);N_GUARD::S(A),XP(b)
  - P(a);N_GUARD::S(D)
  - P(b);N_GUARD::S(A)
  - P(i);N_GUARD::S(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).