MESON Chess Problem Database
Problem Display
PID: 183147 (8/4p1K1/8/1R1Pk3/1Q4P1/5P2/3Pn3/8 w - - 0 1)
Palkoska, Emil
Source?, 1907
#2
7 + 3
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.f4#
- 1...Sg1
- 2.f4#
- 1...Sc3
- 2.f4#
- 1...Sg3
- 2.f4#
- 1...Sf4
- 2.d4#
- 1...e6
- 2.d6#
- 1...Sc1
- Tries
- 1.Kf7?
- threat
- 2.d6#
- 1...Sc3
- 2.f4#
- 1...Sf4
- 2.d4#
- 1...Sd4!
- threat
- 1.Qxe7+?
- 1...Kd4
- 2.Qe4#
- 1...Kf4!
- 1...Kd4
- 1.d3?
- 1...Sc1
- 2.f4#
- 1...Sg1
- 2.f4#
- 1...Sc3
- 2.f4#
- 1...Sg3
- 2.f4#
- 1...Sf4
- 2.d4#
- 1...e6
- 2.d6#
- 1...Sd4!
- 1...Sc1
- 1.Kf7?
- Keys
- 1.Ra5!
- 1...Sd4
- 2.Qb8#
- 1...Sc1
- 2.f4#
- 1...Sg1
- 2.f4#
- 1...Sc3
- 2.f4#
- 1...Sg3
- 2.f4#
- 1...Sf4
- 2.d4#
- 1...e6
- 2.d6#
- 1...Sd4
- 1.Ra5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::P(B)
- S(a);N_GUARD,SBLOCK::P(A)
- P(c);SBLOCK::R(E)+P(F)
- Tries
- Try
- K(G);P-FLIGHT
- Threat
- R(E)+P(F)
- Vars
- S(a);N_GUARD::P(B)
- S(a);N_GUARD,SBLOCK::P(A)
- Refutation
- S(a);
- Try
- Q(C);CHECK,XP(c)
- Vars
- K(b);OGATE,S_FLIGHT::QAR1(C)
- Refutation
- K(b);S_FLIGHT
- Try
- P(A);
- Vars
- S(a);N_GUARD::P(B)
- S(a);N_GUARD,SBLOCK::P(A)
- P(c);SBLOCK::R(E)+P(F)
- Refutation
- S(a);
- Try
- Actual
- R(E);
- Vars
- S(a);SBLOCK::QAB(C)
- S(a);N_GUARD::P(B)
- S(a);N_GUARD,SBLOCK::P(A)
- P(c);SBLOCK::R(E)+P(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).