MESON Chess Problem Database
Problem Display
PID: 202837 (1b5q/8/2R5/1NR3B1/4k1N1/2Pppp2/2Pp3p/3B3K w - - 0 1)
Gelitz, Jurgen
Schach, 2019
#2
9 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Sxf6#
- 1...Qh3
- 2.Sf6#
- 1...Qh4
- 2.Sf6#
- 1...Qh5
- 2.Sf6#
- 1...Qh7
- 2.Sf6#
- 1...Qc8
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qg8
- 2.Sf6#
- 1...Bd6
- 2.Sxd6#
- 1...Ba7
- 2.Sd6#
- 1...dxc2
- 2.Bxc2#
- 1...e2
- 2.Sf2#
- 1...Qf6
- Tries
- 1.Re6+?
- 1...Be5
- 2.Sd6#
- 1...Qe5!
- 1...Be5
- 1.Rf6?
- threat
- 2.Bxf3#
- 1...Qxf6
- 2.Sxf6#
- 1...dxc2
- 2.Bxc2#
- 1...Bf4
- 2.Rxf4#
- 1...e2
- 2.Sf2#
- 1...f2
- 2.Bf3#
- 1...Qh3!
- threat
- 1.Re6+?
- Keys
- 1.Rd6!
- threat
- 2.cxd3#
- 1...Qxc3
- 2.Sxc3#
- 1...Bxd6
- 2.Sxd6#
- 1...dxc2
- 2.Bxc2#
- 1...Qe5
- 2.Rxe5#
- 1...Qd4
- 2.Rxd4#
- threat
- 1.Rd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- Q(h);N_GUARD::S(E),XQ(h)
- Q(h);N_GUARD::S(E)
- B(g);N_GUARD::S(F),XB(g)
- B(g);N_GUARD::S(F)
- P(c);OGATE,XP(C)::B(A),XP(c)
- P(d);N_GUARD::S(E)
- Tries
- Try
- R(I);CHECK
- Vars
- B(g);P_SPINB(g)::S(F)
- Refutation
- Q(h);P_SPINQ(h)
- Try
- R(I);
- Threat
- B(A),XP(e)
- Vars
- Q(h);XR(I)::S(E),XQ(h)
- P(c);OGATE,XP(C)::B(A),XP(c)
- B(g);N_GUARD::R1(I),XB(g)
- P(d);N_GUARD::S(E)
- P(e);::B(A)
- Refutation
- Q(h);
- Try
- Actual
- R(I);
- Threat
- P(C),XP(c)
- Vars
- Q(h);XP(D)::S(F),XQ(h)
- B(g);XR(I)::S(F),XB(g)
- P(c);OGATE,XP(C)::B(A),XP(c)
- Q(h);N_GUARD::R1(G),XQ(h)
- Q(h);N_GUARD::R1(I),XQ(h)
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).