MESON Chess Problem Database
Problem Display
PID: 205526 (8/8/8/7B/8/5pkp/3Q4/2B4K w - - 0 1)
Pape, Edouard
L'Echiquier Marseillais, 1925
#2
4 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kh4
- 2.Qg5#
- 1...f2
- 2.Qf4#
- 2.Qg5#
- 1...h2
- 2.Qxh2#
- 1...Kh4
- Tries
- 1.Bb2?
- 1...h2
- 2.Qxh2#
- 1...f2
- 2.Qg5#
- 1...Kh4!
- 1...h2
- 1.Ba3?
- 1...h2
- 2.Qxh2#
- 1...f2
- 2.Qg5#
- 1...Kh4!
- 1...h2
- 1.Bg6?
- 1...Kg4
- 2.Qf4#
- 2.Qg5#
- 1...Kh4
- 2.Qf4#
- 2.Qg5#
- 1...f2
- 2.Qf4#
- 1...h2!
- 1...Kg4
- 1.Bf7?
- 1...Kg4
- 2.Qf4#
- 2.Qg5#
- 1...Kh4
- 2.Qf4#
- 2.Qg5#
- 1...f2
- 2.Qf4#
- 1...h2!
- 1...Kg4
- 1.Be8?
- 1...Kg4
- 2.Qf4#
- 2.Qg5#
- 1...Kh4
- 2.Qf4#
- 2.Qg5#
- 1...f2
- 2.Qf4#
- 1...h2!
- 1...Kg4
- 1.Qe3?
- 1...Kh4
- 2.Qg5#
- 1...h2!
- 1...Kh4
- 1.Qd4?
- 1...f2
- 2.Qf4#
- 2.Qg4#
- 1...h2!
- 1...f2
- 1.Bb2?
- Keys
- 1.Kg1!
- threat
- 2.Qf4#
- 2.Qg5#
- 2.Qf2#
- 1...f2+
- 2.Qxf2#
- 1...h2+
- 2.Qxh2#
- 1...Kh4
- 2.Qg5#
- threat
- 1.Kg1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT::QAB1(C)
- P(c);::QAB1(C),XP(c)
- Tries
- Try
- B(A);
- Vars
- P(c);::QAB1(C),XP(c)
- P(a);SBLOCK::QAR2(C)
- Refutation
- K(b);S_FLIGHT
- Try
- B(A);
- Vars
- P(c);::QAB1(C),XP(c)
- P(a);SBLOCK::QAR2(C)
- Refutation
- K(b);S_FLIGHT
- Try
- B(D);
- Vars
- P(a);::QAB1(C)
- Refutation
- P(c);
- Try
- B(D);
- Vars
- P(a);::QAB1(C)
- Refutation
- P(c);
- Try
- B(D);
- Vars
- P(a);::QAB1(C)
- Refutation
- P(c);
- Try
- Q(C);P_PINP(a)
- Vars
- K(b);N_SPINP(a),S_FLIGHT::QAB1(C)
- Refutation
- P(c);
- Try
- Q(C);
- Refutation
- P(c);
- Try
- Actual
- K(B);P-FLIGHT
- Threat
- DUALS(3)
- Vars
- P(a);CHECK::QAB1(C),XP(a)
- P(c);CHECK::QAB1(C),XP(c)
- K(b);S_FLIGHT::QAB1(C)
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).