MESON Chess Problem Database
Problem Display
PID: 236497 (7q/3NB3/n1p4r/3p1Q1b/p2k2p1/3N1p2/2RKn3/8 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Rochade Europa, 2001
#2
6 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Qxe5#
- 1...Qh7
- 2.Qe5#
- 1...Qa8
- 2.Qe5#
- 1...Qc8
- 2.Qe5#
- 1...Qd8
- 2.Qe5#
- 1...Qe8
- 2.Qe5#
- 1...Qf8
- 2.Qe5#
- 1...Qg8
- 2.Qe5#
- 1...Rf6
- 2.Qe5#
- 1...Sc1
- 2.Qf4#
- 1...Sg1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb4
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Sc7
- 2.Bc5#
- 1...Sb8
- 2.Bc5#
- 1...Qe5
- Tries
- 1.Sc1?
- threat
- 2.Qd3#
- 1...Sxc1
- 2.Qf4#
- 1...Qh7
- 2.Qe5#
- 1...Sf4
- 2.Qxf4#
- 1...Sb4
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Bg6!
- threat
- 1.Se1?
- threat
- 2.Qd3#
- 1...Qh7
- 2.Qe5#
- 1...Sc1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb4
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Bg6!
- threat
- 1.Sb2?
- threat
- 2.Qd3#
- 1...Qh7
- 2.Qe5#
- 1...Sc1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb4
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Bg6!
- threat
- 1.Sf2?
- threat
- 2.Qd3#
- 1...Qh7
- 2.Qe5#
- 1...Sc1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb4
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Bg6!
- threat
- 1.Sf4?
- threat
- 2.Qd3#
- 1...Sxf4
- 2.Qxf4#
- 1...Bg6
- 2.Se6#
- 1...Qh7
- 2.Qe5#
- 1...Sb4
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Sc1!
- threat
- 1.S3c5?
- threat
- 2.Qd3#
- 1...Sxc5
- 2.Bxc5#
- 1...Bg6
- 2.Se6#
- 1...Qh7
- 2.Qe5#
- 1...Sc1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb4!
- threat
- 1.S3e5?
- threat
- 2.Qd3#
- 1...Bg6
- 2.Sxc6#
- 1...Sc1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sb4
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Qh7!
- threat
- 1.Bf6+?
- 1...Rxf6
- 2.Qe5#
- 1...Qxf6!
- 1...Rxf6
- 1.Qxg4+?
- 1...Sf4
- 2.Qxf4#
- 1...Bxg4!
- 1...Sf4
- 1.Sc1?
- Keys
- 1.Sb4!
- threat
- 2.Qd3#
- 1...Sxb4
- 2.Bc5#
- 1...Bg6
- 2.Sxc6#
- 1...Qh7
- 2.Qe5#
- 1...Sc1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sc5
- 2.Bxc5#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- Q(k);N_GUARD::QAB1(D),XQ(k)
- Q(k);N_GUARD::QAB1(D)
- R(j);S_CUTQ(k)::QAB1(D)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(h);N_GUARD::B(F)
- S(h);N_GUARD::B(F),XS(h)
- Tries
- Try
- S(C);
- Threat
- QAR1(D)
- Vars
- S(a);N_GUARD,XS(C)::QAR2(D)
- Q(k);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(h);N_GUARD::B(F)
- S(h);N_GUARD::B(F),XS(h)
- Refutation
- B(g);
- Try
- S(C);
- Threat
- QAR1(D)
- Vars
- Q(k);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(h);N_GUARD::B(F)
- S(h);N_GUARD::B(F),XS(h)
- Refutation
- B(g);
- Try
- S(C);
- Threat
- QAR1(D)
- Vars
- Q(k);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(h);N_GUARD::B(F)
- S(h);N_GUARD::B(F),XS(h)
- Refutation
- B(g);
- Try
- S(C);
- Threat
- QAR1(D)
- Vars
- Q(k);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(h);N_GUARD::B(F)
- S(h);N_GUARD::B(F),XS(h)
- Refutation
- B(g);
- Try
- S(C);
- Threat
- QAR1(D)
- Vars
- S(a);OGATE,XS(C)::QAR2(D),XS(a)
- B(g);S_CUTR(j)::S(C)
- Q(k);N_GUARD::QAB1(D)
- S(h);N_GUARD::B(F)
- S(h);N_GUARD::B(F),XS(h)
- Refutation
- S(a);
- Try
- S(C);
- Threat
- QAR1(D)
- Vars
- S(h);OGATE,XS(C)::B(F),XS(h)
- B(g);S_CUTR(j)::S(C)
- Q(k);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- S(h);
- Try
- S(C);
- Threat
- QAR1(D)
- Vars
- B(g);S_CUTR(j)::S(C),XP(i)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(h);N_GUARD::B(F)
- S(h);N_GUARD::B(F),XS(h)
- Refutation
- Q(k);
- Try
- B(F);CHECK
- Vars
- R(j);XB(F)::QAB1(D)
- Refutation
- Q(k);XB(F)
- Try
- Q(D);CHECK,XP(e)
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(D),XS(a)
- Refutation
- B(g);XQ(D)
- Try
- Actual
- S(C);
- Threat
- QAR1(D)
- Vars
- S(h);N_GUARD,XS(C)::B(F)
- B(g);S_CUTR(j)::S(C),XP(i)
- Q(k);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- S(h);N_GUARD::B(F),XS(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).