MESON Chess Problem Database
Problem Display
PID: 56582 (8/2b2Qp1/4Rp2/3b4/1B1k4/3P2P1/1K6/1B1R4 w - - 0 1)
Lazard, Frederic
La Revue d'Echecs, 1904
#2
8 + 5
| 797 | Bulletin de la FFE | 1922 |
| 6315 | Mes problemes et etudes d'echecs (Lazard) | 1929 |
SOLUTION
- SOUND
- Sets
- 1...Ba2
- 2.Re4#
- 1...Bb3
- 2.Re4#
- 1...Bc4
- 2.Re4#
- 1...Be4
- 2.Rxe4#
- 1...Bxg3
- 2.Qa7#
- 1...Bf4
- 2.Qa7#
- 1...Be5
- 2.Qa7#
- 1...Ba2
- Tries
- 1.Qxf6+?
- 1...Be5
- 2.Qxe5#
- 2.Qf2#
- 1...gxf6!
- 1...Be5
- 1.Qxc7?
- threat
- 2.Bc3#
- 2.Bc5#
- 2.Qb6#
- 2.Qc3#
- 2.Qc5#
- 2.Qa7#
- 1...Bxe6
- 2.Qc5#
- 1...Bh1
- 2.Qc4#
- 2.Qc5#
- 1...Ba2
- 2.Qc5#
- 1...Bg2
- 2.Qc4#
- 2.Qc5#
- 1...Bb3
- 2.Qc5#
- 1...Bf3
- 2.Qc4#
- 2.Qc5#
- 1...Bc4
- 2.Qxc4#
- 2.Qc5#
- 2.dxc4#
- 1...Be4
- 2.Qc5#
- 1...Bb7
- 2.Qc4#
- 2.Qc5#
- 1...Ba8
- 2.Qc4#
- 2.Qc5#
- 1...Bc6!
- threat
- 1.Qe7?
- threat
- 2.Bc3#
- 2.Bc5#
- 2.Qc5#
- 1...Bxe6
- 2.Qc5#
- 1...Bh1
- 2.Qc5#
- 1...Ba2
- 2.Qc5#
- 1...Bg2
- 2.Qc5#
- 1...Bb3
- 2.Qc5#
- 1...Bf3
- 2.Qc5#
- 1...Bc4
- 2.Qc5#
- 1...Be4
- 2.Qc5#
- 1...Bc6
- 2.Qc5#
- 1...Bb7
- 2.Qc5#
- 1...Ba8
- 2.Qc5#
- 1...Be5
- 2.Bc5#
- 2.Qc5#
- 2.Qa7#
- 1...Ba5
- 2.Bc5#
- 2.Qc5#
- 1...Bb6
- 2.Bc3#
- 1...Bd6!
- threat
- 1.Qf8?
- threat
- 2.Bc3#
- 2.Bc5#
- 2.Qc5#
- 1...Bxe6
- 2.Qc5#
- 1...Bh1
- 2.Qc5#
- 1...Ba2
- 2.Qc5#
- 1...Bg2
- 2.Qc5#
- 1...Bb3
- 2.Qc5#
- 1...Bf3
- 2.Qc5#
- 1...Bc4
- 2.Qc5#
- 1...Be4
- 2.Qc5#
- 1...Bc6
- 2.Qc5#
- 1...Bb7
- 2.Qc5#
- 1...Ba8
- 2.Qc5#
- 1...Be5
- 2.Bc5#
- 2.Qc5#
- 1...Ba5
- 2.Bc5#
- 2.Qc5#
- 1...Bb6
- 2.Bc3#
- 1...Bd6!
- threat
- 1.Qxf6+?
- Keys
- 1.Re5!
- threat
- 2.Qxd5#
- 1...Kxe5
- 2.d4#
- 1...Bxf7
- 2.Bc3#
- 1...Bxe5
- 2.Qa7#
- 1...fxe5
- 2.Qf2#
- 1...Be4
- 2.Rxe4#
- 1...Bh1
- 2.Bc3#
- 1...Ba2
- 2.Bc3#
- 2.Re4#
- 1...Bg2
- 2.Bc3#
- 1...Bb3
- 2.Bc3#
- 2.Re4#
- 1...Bf3
- 2.Bc3#
- 1...Bc4
- 2.Bc3#
- 2.Re4#
- 1...Bc6
- 2.Bc3#
- 1...Be6
- 2.Bc3#
- 1...Bb7
- 2.Bc3#
- 1...Ba8
- 2.Bc3#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 5
- Sets
- B(b);N_GUARD::R1(G)
- B(b);N_GUARD::R1(G),XB(b)
- B(d);OGATE,XP(E)::QAB(H)
- B(d);OGATE::QAB(H)
- Tries
- Try
- Q(H);CHECK,XP(c)
- Refutation
- P(e);XQ(H)
- Try
- Q(H);XB(d)
- Threat
- DUALS(6)
- Vars
- B(b);XR(G)::QAB1(H)
- B(b);::QAB1(H)
- Refutation
- B(b);
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- B(b);XR(G)::QAB1(H)
- B(b);::QAB1(H)
- B(d);::B(F)
- Refutation
- B(d);
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- B(b);XR(G)::QAB1(H)
- B(b);::QAB1(H)
- B(d);::B(F)
- Refutation
- B(d);
- Try
- Actual
- R(G);
- Threat
- QAR1(H),XB(b)
- Vars
- K(a);OGATE,S_FLIGHT,XR(G)::P(D)
- B(b);XQ(H)::B(F)
- B(d);OGATE,SBLOCK,XR(G)::QAB(H)
- P(c);OGATE,SBLOCK,XR(G)::QAB(H)
- B(b);N_GUARD::R1(G),XB(b)
- B(b);::B(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).