MESON Chess Problem Database
Problem Display
PID: 232512 (5b2/5K1p/n7/3Nkpp1/6r1/B2R1Q1b/8/4q3 w - - 0 1)
Groth, Reinhard
Freie Presse, 1989
#2
5 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Tries
- 1.Se3?
- threat
- 2.Rd5#
- 2.Qxf5#
- 1...Qxe3
- 2.Rd5#
- 1...Qd2
- 2.Qxf5#
- 1...Qf2
- 2.Rd5#
- 1...Qa5
- 2.Qxf5#
- 1...Qd1
- 2.Qxf5#
- 1...Qf1
- 2.Rd5#
- 1...Rg1
- 2.Sc4#
- 2.Rd5#
- 1...Rg2
- 2.Sc4#
- 2.Rd5#
- 1...Rg3
- 2.Sc4#
- 2.Rd5#
- 1...Ra4
- 2.Rd5#
- 1...Rb4
- 2.Rd5#
- 1...Rc4
- 2.Sxc4#
- 2.Rd5#
- 1...Re4
- 2.Rd5#
- 1...Rf4
- 2.Rd5#
- 2.Qd5#
- 1...Rh4
- 2.Rd5#
- 1...Sb4
- 2.Qxf5#
- 1...Sc7
- 2.Qxf5#
- 1...f4
- 2.Rd5#
- 2.Qd5#
- 1...Rd4!
- threat
- 1.Sb6?
- threat
- 2.Sd7#
- 2.Rd5#
- 1...f4
- 2.Rd5#
- 2.Qd5#
- 1...Qd2
- 2.Sd7#
- 1...Qa5
- 2.Sd7#
- 1...Qd1
- 2.Sd7#
- 1...Qe4
- 2.Sd7#
- 1...Sb4
- 2.Sd7#
- 1...Sc5
- 2.Rd5#
- 1...Sc7
- 2.Sd7#
- 1...Sb8
- 2.Rd5#
- 1...Rd4!
- threat
- 1.Sf6?
- threat
- 2.Sd7#
- 2.Rd5#
- 1...f4
- 2.Rd5#
- 2.Qd5#
- 1...Qd2
- 2.Sd7#
- 1...Qa5
- 2.Sd7#
- 1...Qd1
- 2.Sd7#
- 1...Qe4
- 2.Sd7#
- 1...Sb4
- 2.Sd7#
- 1...Sc5
- 2.Rd5#
- 1...Sc7
- 2.Sd7#
- 1...Sb8
- 2.Rd5#
- 1...Rd4!
- threat
- 1.Se3?
- Keys
- 1.Se7!
- threat
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 2.Qxf5#
- 1...Bxe7
- 2.Rd5#
- 1...Rd4
- 2.Sc6#
- 1...Qd2
- 2.Sc6#
- 2.Bd6#
- 2.Qxf5#
- 1...Qf2
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 1...Qc3
- 2.Bd6#
- 2.Rd5#
- 2.Qxf5#
- 1...Qb4
- 2.Sc6#
- 2.Rd5#
- 2.Qxf5#
- 1...Qa5
- 2.Sc6#
- 2.Bd6#
- 2.Qxf5#
- 1...Qc1
- 2.Bd6#
- 2.Rd5#
- 2.Qxf5#
- 1...Qd1
- 2.Sc6#
- 2.Bd6#
- 2.Qxf5#
- 1...Qf1
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 1...Qe4
- 2.Bd6#
- 1...Rg1
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 1...Rg2
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 1...Rg3
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 1...Ra4
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 1...Rb4
- 2.Sc6#
- 2.Rd5#
- 1...Rc4
- 2.Bd6#
- 2.Rd5#
- 1...Re4
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 1...Rf4
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 2.Qd5#
- 1...Rh4
- 2.Sc6#
- 2.Bd6#
- 2.Rd5#
- 1...Sb4
- 2.Qxf5#
- 1...Sc5
- 2.Sc6#
- 2.Rd5#
- 2.Qxf5#
- 1...Sc7
- 2.Sc6#
- 2.Bd6#
- 2.Qxf5#
- 1...Sb8
- 2.Bd6#
- 2.Rd5#
- 2.Qxf5#
- 1...f4
- 2.Bd6#
- 2.Rd5#
- 2.Qd5#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);XS(D)::R1(B)
- Q(a);::QAR1(C),XP(e)
- Q(a);::R1(B)
- R(c);::R1(B)
- S(g);::QAR1(C),XP(e)
- Refutation
- R(c);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);::S(D)
- S(g);::S(D)
- S(g);::R1(B)
- Refutation
- R(c);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);::S(D)
- S(g);::S(D)
- S(g);::R1(B)
- Refutation
- R(c);
- Try
- Actual
- S(D);
- Threat
- DUALS(4)
- Vars
- B(i);XS(D)::R1(B)
- R(c);::S(D)
- Q(a);::B(A)
- S(g);::QAR1(C),XP(e)
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).