MESON Chess Problem Database
Problem Display
PID: 35380 (nQ1bb3/3r1p2/2pp1pp1/1P1k4/2N3N1/3K1p1B/5B2/1nR1R3 w - - 0 1)
Hoffmann, Martin Wolfgang
5th Prize, Die Schwalbe, 1989
#2
9 + 12
| 4827 | FIDE Album (1989-1991) | 1997 |
| 3454 | kunstschach (1987-1996) (Hoffmann) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Ra7
- 2.Qxd6#
- 1...Rb7
- 2.Qxd6#
- 1...Re7
- 2.Sxf6#
- 2.Qxd6#
- 1...Ba5
- 2.Sxf6#
- 1...Bb6
- 2.Sxf6#
- 1...Bc7
- 2.Sxf6#
- 1...Sc7
- 2.Sb6#
- 1...cxb5
- 2.Qxb5#
- 1...c5
- 2.Sge3#
- 1...Ra7
- Tries
- 1.Sb6+?
- 1...Bxb6
- 2.Sxf6#
- 1...Sxb6!
- 1...Bxb6
- 1.Bd4?
- threat
- 2.Sge3#
- 1...cxb5
- 2.Qxb5#
- 1...Re7
- 2.Sxf6#
- 2.Qxd6#
- 1...f5!
- threat
- 1.Re4?
- threat
- 2.Sce3#
- 1...Bb6
- 2.Sxf6#
- 1...Sc3!
- threat
- 1.Re7?
- threat
- 2.Sce3#
- 2.Sxf6#
- 1...Rxe7
- 2.Sxf6#
- 2.Qxd6#
- 1...cxb5
- 2.Sce3#
- 2.Qxb5#
- 1...Bb6
- 2.Sxf6#
- 1...Sc3
- 2.Sxf6#
- 1...f5
- 2.Sce3#
- 2.Sf6#
- 1...Bxe7!
- threat
- 1.Qc7?
- threat
- 2.Qxc6#
- 1...Bxc7
- 2.Sxf6#
- 1...Sxc7
- 2.Sb6#
- 1...cxb5
- 2.Sge3#
- 1...Re7
- 2.Sxf6#
- 2.Qxd6#
- 1...c5
- 2.Sge3#
- 2.Qc6#
- 1...Rxc7!
- threat
- 1.Qb6?
- threat
- 2.Sge3#
- 2.Qd4#
- 2.Qxc6#
- 1...Bxb6
- 2.Sxf6#
- 1...cxb5
- 2.Sge3#
- 2.Qxb5#
- 1...Rc7
- 2.Sge3#
- 2.Qd4#
- 1...Ra7
- 2.Sge3#
- 2.Qd4#
- 1...Rb7
- 2.Sge3#
- 2.Qd4#
- 1...Re7
- 2.Sxf6#
- 2.Qd4#
- 1...c5
- 2.Sge3#
- 2.Qc6#
- 1...f5
- 2.Qd4#
- 2.Qxc6#
- 1...Sxb6!
- threat
- 1.Qxd8?
- threat
- 2.Sxf6#
- 1...f5
- 2.Sf6#
- 1...cxb5!
- threat
- 1.Sb6+?
- Keys
- 1.Qc8!
- threat
- 2.Qxc6#
- 1...cxb5
- 2.Sge3#
- 1...Rc7
- 2.Sce3#
- 1...Ra7
- 2.Sce3#
- 1...Rb7
- 2.Sce3#
- 1...Re7
- 2.Sxf6#
- 1...Bc7
- 2.Sxf6#
- 1...Sc7
- 2.Sb6#
- 1...c5
- 2.Sge3#
- 2.Qc6#
- threat
- 1.Qc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(h);N_GUARD::QAR1(I),XP(e)
- B(k);N_GUARD::S(G),XP(f)
- S(j);N_GUARD,S_CUTB(k)::S(F)
- P(d);OGATE,XP(H)::QAR2(I),XP(d)
- P(d);SBLOCK::S(G)
- Tries
- Try
- S(F);CHECK
- Vars
- B(k);XS(F)::S(G),XP(f)
- Refutation
- S(j);XS(F)
- Try
- B(C);
- Threat
- S(G)
- Vars
- P(d);OGATE,XP(H)::QAR2(I),XP(d)
- Refutation
- P(f);
- Try
- R(B);
- Threat
- S(F)
- Vars
- B(k);N_GUARD::S(G),XP(f)
- Refutation
- S(a);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(k);::S(G),XP(f)
- S(a);::S(G),XP(f)
- Refutation
- B(k);XR(B)
- Try
- Q(I);
- Threat
- QAB1(I),XP(d)
- Vars
- B(k);N_GUARD,XQ(I)::S(G),XP(f)
- S(j);N_GUARD,XQ(I)::S(F)
- P(d);XP(H)::S(G)
- Refutation
- R(h);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- B(k);N_GUARD,XQ(I)::S(G),XP(f)
- Refutation
- S(j);XQ(I)
- Try
- Q(I);XB(k)
- Threat
- S(G),XP(f)
- Vars
- P(f);::S(G)
- Refutation
- P(d);XP(H)
- Try
- Actual
- Q(I);
- Threat
- QAB1(I),XP(d)
- Vars
- P(d);XP(H)::S(G)
- R(h);::S(F)
- R(h);S_CUTB(k)::S(G),XP(f)
- B(k);N_GUARD::S(G),XP(f)
- S(j);N_GUARD,S_CUTB(k)::S(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).