MESON Chess Problem Database
Problem Display
PID: 223452 (5Q2/3p2r1/3N1p2/2pP2pn/2Pk4/1K3pr1/3bpN2/5nB1 w - - 0 1)
Steif, Adolf
Bruderschaft, 1886
#2
7 + 12
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Sd3#
- 1...Ke5
- Tries
- 1.Qe7?
- threat
- 2.Sb5#
- 2.Sf5#
- 2.Qe4#
- 1...e1Q
- 2.Sb5#
- 2.Sf5#
- 1...e1R
- 2.Sb5#
- 2.Sf5#
- 1...Rg4
- 2.Sb5#
- 2.Sf5#
- 1...Se3
- 2.Sb5#
- 2.Qe4#
- 1...f5
- 2.Sb5#
- 2.Sxf5#
- 1...Rxe7!
- threat
- 1.Qxf6+?
- 1...Ke3
- 2.Qe5#
- 1...Sxf6!
- 1...Ke3
- 1.Qe8?
- threat
- 2.Sb5#
- 2.Sf5#
- 2.Qe4#
- 1...e1Q
- 2.Sb5#
- 2.Sf5#
- 1...e1R
- 2.Sb5#
- 2.Sf5#
- 1...Rg4
- 2.Sb5#
- 2.Sf5#
- 1...Se3
- 2.Sb5#
- 2.Qe4#
- 1...f5
- 2.Sb5#
- 2.Sxf5#
- 1...Re7!
- threat
- 1.Qe7?
- Keys
- 1.Qb8!
- threat
- 2.Sf5#
- 1...Ke3
- 2.Sf5#
- 1...Ke5
- 2.Sd3#
- 1...Se3
- 2.Sb5#
- 1...f5
- 2.Sxf5#
- threat
- 1.Qb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(f);S_FLIGHT::S(B)
- Tries
- Try
- Q(G);
- Threat
- DUALS(3)
- Refutation
- R(l);XQ(G)
- Try
- Q(G);CHECK,XP(j)
- Vars
- K(f);S_FLIGHT::QAR2(G)
- Refutation
- S(i);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(3)
- Refutation
- R(l);
- Try
- Actual
- Q(G);
- Threat
- S(F)
- Vars
- K(f);S_FLIGHT::S(F)
- K(f);S_FLIGHT::S(B)
- S(a);SBLOCK::S(F)
- P(j);::S(F),XP(j)
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).