MESON Chess Problem Database
Problem Display
PID: 262341 (8/Q4P2/2P5/3P2R1/1q1Nk1K1/3pP2R/1p6/2bB4 w - - 0 1)
Roche, Jean
1st HM., Europe Echecs, 1993
#2
10 + 5
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Qe7#
- 1...Qd2
- 2.Qe7#
- 1...Qc3
- 2.Qe7#
- 1...Qa5
- 2.Qe7#
- 1...Qe7
- 2.Qxe7#
- 1...Qb3
- 2.Qe7#
- 1...Qa4
- 2.Qe7#
- 1...Qc4
- 2.Qe7#
- 1...Qxd4
- 2.Qxd4#
- 1...Qb5
- 2.Qe7#
- 1...Qb6
- 2.Qe7#
- 1...Bxe3
- 2.Bf3#
- 1...d2
- 2.Bc2#
- 1...Qe1
- Tries
- 1.Sc2?
- threat
- 2.Bf3#
- 1...dxc2
- 2.Bxc2#
- 1...d2!
- threat
- 1.Se2?
- threat
- 2.Sg3#
- 1...dxe2
- 2.Bc2#
- 1...d2
- 2.Bc2#
- 1...Qe1
- 2.Qd4#
- 2.Qe7#
- 1...Qd6
- 2.Sc3#
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Qb6
- 2.Sc3#
- 2.Qe7#
- 1...Qb8
- 2.Sc3#
- 2.Qd4#
- 1...Qc5!
- threat
- 1.Sf3?
- threat
- 2.Re5#
- 1...Qd4
- 2.Qxd4#
- 1...d2
- 2.Bc2#
- 1...Qd6
- 2.Qd4#
- 1...Qe7
- 2.Qd4#
- 2.Qxe7#
- 1...Qb8
- 2.Qd4#
- 1...Qc3!
- threat
- 1.Sb5?
- threat
- 2.Bf3#
- 1...d2
- 2.Bc2#
- 1...Qd4
- 2.Sd6#
- 2.Qxd4#
- 1...Qc5!
- threat
- 1.Se6?
- threat
- 2.Bf3#
- 1...d2
- 2.Bc2#
- 1...Qc5
- 2.Sxc5#
- 1...Qd4
- 2.Qxd4#
- 1...Qb6!
- threat
- 1.Qc7?
- threat
- 2.Re5#
- 2.Qf4#
- 2.Qe5#
- 1...Qxd4
- 2.Qf4#
- 1...Bxe3
- 2.Qe5#
- 1...d2
- 2.Bc2#
- 1...Qe7
- 2.Qf4#
- 2.Qxe7#
- 1...Qb8
- 2.Re5#
- 1...Qd6!
- threat
- 1.Qd7?
- threat
- 2.Qf5#
- 2.Qe6#
- 1...Qxd4
- 2.Qf5#
- 1...d2
- 2.Bc2#
- 2.Qf5#
- 1...Qd6
- 2.Qf5#
- 1...Qe7
- 2.Qf5#
- 2.Qxe7#
- 1...Qb8
- 2.Qf5#
- 1...Bxe3!
- threat
- 1.f8Q?
- threat
- 2.Qh7#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Bxe3
- 2.Bf3#
- 2.Qf3#
- 2.Qf5#
- 1...d2
- 2.Bc2#
- 2.Qh7#
- 2.Qf5#
- 1...Qd6
- 2.Qf3#
- 2.Qf5#
- 1...Qe7
- 2.Qfxe7#
- 2.Qaxe7#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Qb7
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Qb8
- 2.Qh7#
- 2.Qf3#
- 2.Qf5#
- 1...Qxf8!
- threat
- 1.Sc2?
- Keys
- 1.Sb3!
- threat
- 2.Bf3#
- 1...d2
- 2.Bc2#
- 1...Qc5
- 2.Sxc5#
- 1...Qd4
- 2.Qxd4#
- 1...Qb6
- 2.Qe7#
- threat
- 1.Sb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(d);N_GUARD::QAR(I)
- Q(d);N_GUARD::QAR(I),XQ(d)
- Q(d);OGATE,XS(D)::QAR1(I),XQ(d)
- B(a);SBLOCK,XP(B)::B(A)
- P(c);OGATEB::B(A)
- Tries
- Try
- S(D);
- Threat
- B(A)
- Vars
- P(c);OGATE,XS(D)::B(A),XP(c)
- Refutation
- P(c);
- Try
- S(D);
- Threat
- S(D)
- Vars
- P(c);OGATEB,XS(D)::B(A)
- P(c);OGATEB::B(A)
- Q(d);N_GUARD::QAR1(I),XQ(d)
- Refutation
- Q(d);
- Try
- S(D);
- Threat
- R1(G)
- Vars
- Q(d);N_GUARD::QAR1(I),XQ(d)
- P(c);OGATEB::B(A)
- Q(d);N_GUARD::QAR1(I)
- Refutation
- Q(d);
- Try
- S(D);
- Threat
- B(A)
- Vars
- P(c);OGATEB::B(A)
- Refutation
- Q(d);
- Try
- S(D);
- Threat
- B(A)
- Vars
- P(c);OGATEB::B(A)
- Q(d);N_GUARD::S(D),XQ(d)
- Q(d);N_GUARD::QAR1(I),XQ(d)
- Refutation
- Q(d);
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- Q(d);XS(D)::QAR1(I)
- B(a);XP(B)::QAR1(I)
- P(c);OGATEB::B(A)
- Q(d);::R1(G)
- Refutation
- Q(d);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(d);XS(D)::QAB1(I)
- Q(d);::QAB1(I)
- Refutation
- B(a);XP(B)
- Try
- P(J);
- Threat
- DUALS(4)
- Refutation
- Q(d);XQ(J)
- Try
- Actual
- S(D);
- Threat
- B(A)
- Vars
- P(c);OGATEB::B(A)
- Q(d);N_GUARD::S(D),XQ(d)
- Q(d);N_GUARD::QAR1(I),XQ(d)
- Q(d);N_GUARD::QAR(I)
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).