MESON Chess Problem Database
Problem Display
PID: 262493 (7Q/2b2q1r/N1np1p1B/2P4R/2ppk3/5N1B/5K2/1b1R4 w - - 0 1)
Doukhan, Gerard
Europe Echecs, 1991
#2
9 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Rh4#
- 1...Bd3
- 2.Sd2#
- 1...Sb4
- 2.Rxd4#
- 1...Sa5
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Sa7
- 2.Rxd4#
- 1...Se7
- 2.Rxd4#
- 1...Sb8
- 2.Rxd4#
- 1...Sd8
- 2.Rxd4#
- 1...d3
- 2.Re1#
- 1...dxc5
- 2.Sxc5#
- 1...d5
- 2.Bf5#
- 1...Qd5
- Tries
- 1.Sb4?
- threat
- 2.Sd2#
- 2.Bf5#
- 2.Re1#
- 2.Rh4#
- 1...Qxh5
- 2.Re1#
- 1...Sxb4
- 2.Rxd4#
- 1...dxc5
- 2.Sd2#
- 2.Bf5#
- 2.Re1#
- 1...Qd5
- 2.Sd2#
- 2.Re1#
- 2.Rh4#
- 1...Qe6
- 2.Sd2#
- 2.Re1#
- 1...Qg6
- 2.Sd2#
- 2.Re1#
- 1...Qg8
- 2.Sd2#
- 2.Bf5#
- 2.Re1#
- 1...Qd7
- 2.Sd2#
- 2.Re1#
- 1...Qg7
- 2.Sd2#
- 2.Bf5#
- 2.Re1#
- 1...Rg7
- 2.Sd2#
- 2.Bf5#
- 2.Re1#
- 1...Bd3
- 2.Sd2#
- 2.Bf5#
- 2.Rh4#
- 1...Se5
- 2.Sd2#
- 2.Bf5#
- 2.Re1#
- 2.Rxd4#
- 1...Se7
- 2.Sd2#
- 2.Re1#
- 2.Rxd4#
- 2.Rh4#
- 1...c3
- 2.Bf5#
- 2.Re1#
- 2.Rh4#
- 1...d3
- 2.Bf5#
- 2.Re1#
- 2.Rh4#
- 1...d5
- 2.Sd2#
- 2.Bf5#
- 2.Re1#
- 1...f5
- 2.Sd2#
- 2.Re1#
- 1...Rxh6!
- threat
- 1.Sb4?
- Keys
- 1.Qa8!
- threat
- 2.Rxd4#
- 1...dxc5
- 2.Sxc5#
- 1...Qd5
- 2.Rh4#
- 1...Bd3
- 2.Sd2#
- 1...d3
- 2.Re1#
- 1...d5
- 2.Bf5#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- Q(i);SBLOCK::R(F)
- B(a);SBLOCK::S(C)
- S(e);N_GUARD::R1(A),XP(c)
- P(c);SBLOCK::R(A)
- P(f);XP(E)::S(G),XP(f)
- P(f);SBLOCK::B(D)
- Tries
- Try
- S(G);
- Threat
- DUALS(4)
- Vars
- Q(i);XR(F)::R(A)
- S(e);N_GUARD,XS(G)::R1(A),XP(c)
- Refutation
- R(j);XB(H)
- Try
- Actual
- Q(I);P_PINS(e)
- Threat
- R1(A),XP(c)
- Vars
- P(f);XP(E)::S(G),XP(f)
- Q(i);N_SPINS(e),SBLOCK::R(F)
- B(a);SBLOCK::S(C)
- P(c);SBLOCK::R(A)
- P(f);N_SPINS(e),SBLOCK::B(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).