MESON Chess Problem Database
Problem Display
PID: 205521 (8/6r1/7k/5Q2/5Pp1/8/2B5/2K5 w - - 0 1)
Palkoska, Emil
L'Echiquier Marseillais, 1925
#2
4 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rg5
- 2.Qh7#
- 2.Qxg5#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 2.Qg5#
- 1...Rb7
- 2.Qg6#
- 2.Qg5#
- 1...Rc7
- 2.Qg6#
- 2.Qg5#
- 1...Rd7
- 2.Qg6#
- 2.Qg5#
- 1...Re7
- 2.Qg6#
- 2.Qg5#
- 1...Rf7
- 2.Qg6#
- 2.Qg5#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 2.Qg5#
- 1...Rg8
- 2.Qh7#
- 1...g3
- 2.Qh3#
- 1...Rg5
- Tries
- 1.Kb1?
- 1...Rg5
- 2.Qh7#
- 2.Qxg5#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 2.Qg5#
- 1...Rc7
- 2.Qg6#
- 2.Qg5#
- 1...Rd7
- 2.Qg6#
- 2.Qg5#
- 1...Re7
- 2.Qg6#
- 2.Qg5#
- 1...Rf7
- 2.Qg6#
- 2.Qg5#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 2.Qg5#
- 1...Rg8
- 2.Qh7#
- 1...g3
- 2.Qh3#
- 1...Rb7+!
- 1...Rg5
- 1.Kd1?
- 1...Rg5
- 2.Qh7#
- 2.Qxg5#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 2.Qg5#
- 1...Rb7
- 2.Qg6#
- 2.Qg5#
- 1...Rc7
- 2.Qg6#
- 2.Qg5#
- 1...Re7
- 2.Qg6#
- 2.Qg5#
- 1...Rf7
- 2.Qg6#
- 2.Qg5#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 2.Qg5#
- 1...Rg8
- 2.Qh7#
- 1...g3
- 2.Qh3#
- 1...Rd7+!
- 1...Rg5
- 1.Kb2?
- 1...Rg5
- 2.Qh7#
- 2.Qxg5#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 2.Qg5#
- 1...Rc7
- 2.Qg6#
- 2.Qg5#
- 1...Rd7
- 2.Qg6#
- 2.Qg5#
- 1...Re7
- 2.Qg6#
- 2.Qg5#
- 1...Rf7
- 2.Qg6#
- 2.Qg5#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 2.Qg5#
- 1...Rg8
- 2.Qh7#
- 1...g3
- 2.Qh3#
- 1...Rb7+!
- 1...Rg5
- 1.Kd2?
- 1...Rg5
- 2.Qh7#
- 2.Qxg5#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 2.Qg5#
- 1...Rb7
- 2.Qg6#
- 2.Qg5#
- 1...Rc7
- 2.Qg6#
- 2.Qg5#
- 1...Re7
- 2.Qg6#
- 2.Qg5#
- 1...Rf7
- 2.Qg6#
- 2.Qg5#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 2.Qg5#
- 1...Rg8
- 2.Qh7#
- 1...g3
- 2.Qh3#
- 1...Rd7+!
- 1...Rg5
- 1.Bb1?
- 1...Rg5
- 2.Qh7#
- 2.Qxg5#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 2.Qg5#
- 1...Rb7
- 2.Qg6#
- 2.Qg5#
- 1...Rd7
- 2.Qg6#
- 2.Qg5#
- 1...Re7
- 2.Qg6#
- 2.Qg5#
- 1...Rf7
- 2.Qg6#
- 2.Qg5#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 2.Qg5#
- 1...Rg8
- 2.Qh7#
- 1...g3
- 2.Qh3#
- 1...Rc7+!
- 1...Rg5
- 1.Bd3?
- 1...Rg5
- 2.Qh7#
- 2.Qxg5#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 2.Qg5#
- 1...Rb7
- 2.Qg6#
- 2.Qg5#
- 1...Rd7
- 2.Qg6#
- 2.Qg5#
- 1...Re7
- 2.Qg6#
- 2.Qg5#
- 1...Rf7
- 2.Qg6#
- 2.Qg5#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 2.Qg5#
- 1...Rg8
- 2.Qh7#
- 1...g3
- 2.Qh3#
- 1...Rc7+!
- 1...Rg5
- 1.Be4?
- 1...Rg5
- 2.Qh7#
- 2.Qxg5#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 2.Qg5#
- 1...Rb7
- 2.Qg6#
- 2.Qg5#
- 1...Rd7
- 2.Qg6#
- 2.Qg5#
- 1...Re7
- 2.Qg6#
- 2.Qg5#
- 1...Rf7
- 2.Qg6#
- 2.Qg5#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 2.Qg5#
- 1...Rg8
- 2.Qh7#
- 1...g3
- 2.Qh3#
- 1...Rc7+!
- 1...Rg5
- 1.Qe6+?
- 1...Rg6
- 2.Qxg6#
- 1...Kh5!
- 1...Rg6
- 1.Qf6+?
- 1...Rg6
- 2.Qh8#
- 2.Qxg6#
- 1...Kh5!
- 1...Rg6
- 1.Kb1?
- Keys
- 1.Qe4!
- threat
- 2.Qh1#
- 1...Kh5
- 2.Qh1#
- 1...Rg5
- 2.Qh7#
- 1...Rg6
- 2.Qxg6#
- 1...Ra7
- 2.Qg6#
- 1...Rb7
- 2.Qg6#
- 1...Rc7
- 2.Qg6#
- 1...Rd7
- 2.Qg6#
- 1...Re7
- 2.Qg6#
- 1...Rf7
- 2.Qg6#
- 1...Rh7
- 2.Qg6#
- 2.Qxh7#
- 1...Rg8
- 2.Qh7#
- threat
- 1.Qe4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD::QAR1(D)
- P(a);OGATE::QAR(D)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD::QAR1(D)
- P(a);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD::QAR1(D)
- P(a);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD::QAR1(D)
- P(a);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD::QAR1(D)
- P(a);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- B(B);
- Vars
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD::QAR1(D)
- P(a);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- B(B);
- Vars
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD::QAR1(D)
- P(a);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- B(B);
- Vars
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD::QAR1(D)
- P(a);OGATE::QAR(D)
- Refutation
- R(c);CHECK
- Try
- Q(D);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAR1(D),XR(c)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(D);CHECK
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- Q(D);
- Threat
- QAR(D)
- Vars
- K(b);P-FLIGHT::QAR(D)
- R(c);N_GUARD::QAR1(D)
- R(c);N_GUARD::QAR1(D),XR(c)
- R(c);N_GUARD,SBLOCK::QAR1(D)
- R(c);N_GUARD,P_PINB(B)::QAR1(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).