MESON Chess Problem Database
Problem Display
PID: 89908 (1N2R2n/6pQ/1b1B4/2pkP3/R2N4/1PPp2n1/8/Kb6 w - - 0 1)
Lincoln, Robert A
Die Schwalbe, 1997
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sf1
- 2.Qh1#
- 1...Sh1
- 2.Qxh1#
- 1...Se2
- 2.Qh1#
- 1...Sf5
- 2.Qh1#
- 1...cxd4
- 2.c4#
- 1...c4
- 2.bxc4#
- 1...g5
- 2.Qb7#
- 1...g6
- 2.Qb7#
- 1...Sf1
- Tries
- 1.Sc2?
- threat
- 2.Se3#
- 2.Qxd3#
- 2.c4#
- 1...dxc2
- 2.Qd3#
- 1...Sf1
- 2.Qxd3#
- 2.Qe4#
- 2.Qh1#
- 2.c4#
- 1...Se2
- 2.Se3#
- 2.Qe4#
- 2.Qh1#
- 2.c4#
- 1...Se4
- 2.Se3#
- 2.Qxe4#
- 2.c4#
- 1...Sf5
- 2.Qh1#
- 1...Sg6
- 2.Se3#
- 2.Qg8#
- 1...d2
- 2.Se3#
- 2.Qd3#
- 2.c4#
- 1...c4
- 2.Sb4#
- 2.bxc4#
- 1...g6
- 2.Se3#
- 2.Qb7#
- 1...Bxc2!
- threat
- 1.Se2?
- threat
- 2.Sf4#
- 2.c4#
- 1...Sxe2
- 2.Qe4#
- 2.Qh1#
- 1...Sf5
- 2.Sf4#
- 2.Qh1#
- 1...Sh5
- 2.Qe4#
- 2.c4#
- 1...Sg6
- 2.Qg8#
- 1...c4
- 2.Sf4#
- 2.bxc4#
- 1...g5
- 2.Qb7#
- 2.c4#
- 1...g6
- 2.Sf4#
- 2.Qb7#
- 1...dxe2!
- threat
- 1.Sf3?
- threat
- 2.c4#
- 1...Sg6
- 2.Qg8#
- 1...c4
- 2.bxc4#
- 1...g6
- 2.Qb7#
- 1...Sf5!
- threat
- 1.Sf5?
- threat
- 2.Se3#
- 1...Sxf5
- 2.Qh1#
- 1...Sf1
- 2.Qh1#
- 1...c4!
- threat
- 1.Sdc6?
- threat
- 2.c4#
- 1...Sf5
- 2.Qh1#
- 1...Sg6
- 2.Qg8#
- 1...c4
- 2.Sb4#
- 2.bxc4#
- 1...g6!
- threat
- 1.Se6?
- threat
- 2.Sf4#
- 2.c4#
- 1...Se2
- 2.Qe4#
- 2.Qh1#
- 2.c4#
- 1...Sf5
- 2.Sf4#
- 2.Qh1#
- 1...Sh5
- 2.Qe4#
- 2.c4#
- 1...c4
- 2.Sf4#
- 2.bxc4#
- 1...g5
- 2.Qb7#
- 2.c4#
- 1...g6
- 2.Sf4#
- 2.Qb7#
- 1...Sg6!
- threat
- 1.Qxd3?
- threat
- 2.Sc2#
- 2.c4#
- 1...cxd4
- 2.c4#
- 1...Bc2
- 2.Sxc2#
- 2.c4#
- 1...Se2
- 2.c4#
- 1...Sf5
- 2.c4#
- 1...c4
- 2.bxc4#
- 1...Bxd3!
- threat
- 1.Qh4?
- threat
- 2.c4#
- 1...c4
- 2.bxc4#
- 1...Se4!
- threat
- 1.Sc2?
- Keys
- 1.Sb5!
- threat
- 2.c4#
- 1...Sf5
- 2.Qh1#
- 1...Sg6
- 2.Qg8#
- 1...c4
- 2.bxc4#
- 1...g6
- 2.Qb7#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- S(c);N_GUARD::QAB(H)
- S(c);N_GUARD::QAB(H),XS(c)
- P(d);SBLOCK,XS(E)::P(C)
- P(d);OGATE::P(B),XP(d)
- P(g);OGATE::QAB(H)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(b);XS(E)::QAR2(H)
- S(c);N_GUARD::QAB(H)
- Refutation
- B(a);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(h);N_GUARD::QAB(H)
- Refutation
- P(b);XS(E)
- Try
- S(E);
- Threat
- P(C)
- Vars
- S(h);N_GUARD::QAB(H)
- P(d);OGATE::P(B),XP(d)
- P(g);OGATE::QAB(H)
- Refutation
- S(c);
- Try
- S(E);
- Threat
- S(E)
- Vars
- S(c);N_GUARD,XS(E)::QAB(H)
- S(c);N_GUARD::QAB(H)
- Refutation
- P(d);
- Try
- S(E);
- Threat
- P(C)
- Vars
- S(c);N_GUARD::QAB(H)
- S(h);N_GUARD::QAB(H)
- Refutation
- P(g);
- Try
- S(E);
- Threat
- DUALS(2)
- Refutation
- S(h);
- Try
- Q(H);XP(b)
- Threat
- DUALS(2)
- Vars
- P(d);P_SPINP(d),XS(E)::P(C)
- S(c);::P(C)
- P(d);OGATE::P(B),XP(d)
- Refutation
- B(a);XQ(H)
- Try
- Q(H);
- Threat
- P(C)
- Vars
- P(d);OGATE::P(B),XP(d)
- Refutation
- S(c);
- Try
- Actual
- S(E);
- Threat
- P(C)
- Vars
- S(c);N_GUARD::QAB(H)
- S(h);N_GUARD::QAB(H)
- P(d);OGATE::P(B),XP(d)
- P(g);OGATE::QAB(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).