MESON Chess Problem Database
Problem Display
PID: 186106 (8/3r1p1K/Q1Rn1N2/1P2k1B1/1b1N4/p3P3/P5rp/7B w - - 0 1)
Speiser, Jacob Kopel
Basler Nachrichten, 1923
#2
10 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sxd7#
- 1...Rxa2
- 2.Sg4#
- 2.Sxd7#
- 1...Rb2
- 2.Sg4#
- 2.Sxd7#
- 1...Rc2
- 2.Sg4#
- 2.Sxd7#
- 1...Rd2
- 2.Sg4#
- 2.Sxd7#
- 1...Re2
- 2.Sg4#
- 2.Sxd7#
- 1...Rf2
- 2.Sg4#
- 2.Sxd7#
- 1...Rg3
- 2.Sxd7#
- 1...Rg4
- 2.Sxg4#
- 2.Sxd7#
- 1...Rxg5
- 2.Sxd7#
- 1...Be1
- 2.Rc5#
- 1...Bd2
- 2.Rc5#
- 1...Bc3
- 2.Rc5#
- 1...Ba5
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Sc4
- 2.Bf4#
- 1...Se4
- 2.Bf4#
- 1...Sxb5
- 2.Bf4#
- 1...Sf5
- 2.Sf3#
- 2.Bf4#
- 1...Sb7
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...Se8
- 2.Bf4#
- 1...Rg1
- Tries
- 1.Rc7?
- 1...Rxa2
- 2.Sg4#
- 2.Sxd7#
- 1...Rxg5
- 2.Sxd7#
- 1...Sxb5
- 2.Bf4#
- 1...Rg1
- 2.Sxd7#
- 1...Rb2
- 2.Sg4#
- 2.Sxd7#
- 1...Rc2
- 2.Sg4#
- 2.Sxd7#
- 1...Rd2
- 2.Sg4#
- 2.Sxd7#
- 1...Re2
- 2.Sg4#
- 2.Sxd7#
- 1...Rf2
- 2.Sg4#
- 2.Sxd7#
- 1...Rg3
- 2.Sxd7#
- 1...Rg4
- 2.Sxg4#
- 2.Sxd7#
- 1...Re7
- 2.Rxe7#
- 1...Rd8
- 2.Re7#
- 1...Be1
- 2.Rc5#
- 1...Bd2
- 2.Rc5#
- 1...Bc3
- 2.Rc5#
- 1...Ba5
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Sc4
- 2.Bf4#
- 1...Se4
- 2.Bf4#
- 1...Sf5
- 2.Sf3#
- 2.Bf4#
- 1...Sb7
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...Se8
- 2.Bf4#
- 1...Rxc7!
- 1...Rxa2
- 1.Rc7?
- Keys
- 1.Qc8!
- 1...Rxa2
- 2.Sg4#
- 2.Sxd7#
- 1...Rxg5
- 2.Sxd7#
- 1...Sxb5
- 2.Bf4#
- 1...Sxc8
- 2.Bf4#
- 1...Ra7
- 2.Sf3#
- 1...Rg1
- 2.Sxd7#
- 1...Rb2
- 2.Sg4#
- 2.Sxd7#
- 1...Rc2
- 2.Sg4#
- 2.Sxd7#
- 1...Rd2
- 2.Sg4#
- 2.Sxd7#
- 1...Re2
- 2.Sg4#
- 2.Sxd7#
- 1...Rf2
- 2.Sg4#
- 2.Sxd7#
- 1...Rg3
- 2.Sxd7#
- 1...Rg4
- 2.Sxg4#
- 2.Sxd7#
- 1...Rb7
- 2.Sf3#
- 1...Rc7
- 2.Sf3#
- 1...Re7
- 2.Sf3#
- 1...Rd8
- 2.Sf3#
- 1...Be1
- 2.Rc5#
- 1...Bd2
- 2.Rc5#
- 1...Bc3
- 2.Rc5#
- 1...Ba5
- 2.Rc5#
- 1...Bc5
- 2.Rxc5#
- 1...Sc4
- 2.Bf4#
- 1...Se4
- 2.Bf4#
- 1...Sf5
- 2.Sf3#
- 2.Bf4#
- 1...Sb7
- 2.Bf4#
- 1...Se8
- 2.Bf4#
- 1...Rxa2
- 1.Qc8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(a);::S(I),XR(g)
- R(a);XB(F)::S(I),XR(g)
- B(d);N_GUARD::R(H)
- B(d);N_GUARD::R(H),XB(d)
- S(f);::B(F)
- S(f);XP(E)::B(F)
- Tries
- Try
- R(H);
- Vars
- R(a);XB(F)::S(I),XR(g)
- S(f);XP(E)::B(F)
- R(a);::S(I),XR(g)
- R(g);OGATE::R(H),XR(g)
- R(g);OGATE::R(H)
- B(d);N_GUARD::R(H)
- B(d);N_GUARD::R(H),XB(d)
- S(f);::B(F)
- Refutation
- R(g);XR(H)
- Try
- Actual
- Q(G);
- Vars
- R(a);XB(F)::S(I),XR(g)
- S(f);XP(E)::B(F)
- S(f);XQ(G)::B(F)
- R(g);::S(D)
- R(a);::S(I),XR(g)
- B(d);N_GUARD::R(H)
- B(d);N_GUARD::R(H),XB(d)
- S(f);::B(F)
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).