MESON Chess Problem Database
Problem Display
PID: 223283 (8/2bK4/3n4/3pknP1/3N4/2r5/3B1P2/1B1Q4 w - - 0 1)
Perry, William E
16th Place, Montreal Daily Witness, 1886
#2
7 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sf3#
- 1...Ra3
- 2.Sc6#
- 1...Rb3
- 2.Sc6#
- 1...Rf3
- 2.Sxf3#
- 2.Sc6#
- 1...Rg3
- 2.Sc6#
- 1...Rh3
- 2.Sc6#
- 1...Rc4
- 2.Sf3#
- 1...Rc5
- 2.Sf3#
- 1...Rc6
- 2.Sf3#
- 2.Sxc6#
- 1...Sxd4
- 2.f4#
- 1...Sc4
- 2.Sc6#
- 1...Rc1
- Tries
- 1.Qf3?
- threat
- 2.Qf4#
- 1...Kxd4
- 2.Qxc3#
- 1...Rxf3
- 2.Sxf3#
- 2.Sc6#
- 1...Re3
- 2.Sc6#
- 1...Se3
- 2.Qf6#
- 1...Se4!
- threat
- 1.Qg4?
- threat
- 2.Qf4#
- 1...Re3
- 2.Sc6#
- 1...Rf3
- 2.Sxf3#
- 2.Sc6#
- 1...Se3
- 2.Sf3#
- 1...Se4!
- threat
- 1.Qf3?
- Keys
- 1.Qa4!
- threat
- 2.f4#
- 1...Rc2
- 2.Sf3#
- 1...Rd3
- 2.Sc6#
- 1...Re3
- 2.Sc6#
- 1...Rc4
- 2.Sf3#
- 1...Se3
- 2.Sf3#
- 1...Sc4
- 2.Sc6#
- 1...Rf3
- 2.Sxf3#
- 2.Sc6#
- threat
- 1.Qa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::S(E)
- S(d);SBLOCK,XS(E)::P(D)
- S(e);S_CUTR(a)::S(E)
- Tries
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- K(c);OGATEB,S_FLIGHT,XS(E)::QAB1(B),XR(a)
- R(a);N_GUARD::S(E)
- S(d);OGATE::QAB1(B)
- Refutation
- S(e);
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- R(a);N_GUARD::S(E)
- S(d);S_CUTR(a)::S(E)
- Refutation
- S(e);
- Try
- Actual
- Q(B);
- Threat
- P(D)
- Vars
- R(a);N_GUARD::S(E)
- S(d);S_CUTR(a)::S(E)
- S(e);S_CUTR(a)::S(E)
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).