MESON Chess Problem Database
Problem Display
PID: 235189 (8/bp2K3/1p1N3p/Pr2k3/1N3pnr/3R3p/2n5/6QB w - - 0 1)
Gruber, Lutz-Dieter
Schach, 2010
#2
7 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxb4
- 2.Rd5#
- 1...Rd5
- 2.Rxd5#
- 1...Sa1
- 2.Qd4#
- 2.Qxa1#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 2.Qa1#
- 1...Sce3
- 2.Qa1#
- 1...Sxb4
- 2.Qd4#
- 2.Qa1#
- 1...Sd4
- 2.Qxd4#
- 1...Sf2
- 2.Qg7#
- 1...Sh2
- 2.Qg7#
- 1...Sge3
- 2.Qg7#
- 1...f3
- 2.Qg3#
- 1...Rxb4
- Tries
- 1.Sxc2?
- threat
- 2.Qd4#
- 1...Rb4
- 2.Rd5#
- 1...Rd5
- 2.Rxd5#
- 1...Sf2
- 2.Qg7#
- 1...Se3
- 2.Qg7#
- 1...bxa5!
- threat
- 1.Bxb7?
- threat
- 2.Sc6#
- 1...Rxb4
- 2.Rd5#
- 1...Sxb4
- 2.Qd4#
- 2.Qa1#
- 1...f3
- 2.Qg3#
- 1...Sd4
- 2.Qxd4#
- 1...Rc5!
- threat
- 1.Rd1?
- threat
- 2.Sd3#
- 1...Rxb4
- 2.Rd5#
- 1...Sxb4
- 2.Qd4#
- 1...f3
- 2.Qg3#
- 1...Rd5
- 2.Rxd5#
- 1...Se1
- 2.Qd4#
- 1...Sf2
- 2.Qg7#
- 1...Sge3
- 2.Qg7#
- 1...Sce3!
- threat
- 1.Rd4?
- threat
- 2.Sd3#
- 2.Re4#
- 1...Rxb4
- 2.Rd5#
- 1...Sxd4
- 2.Sd3#
- 1...Sce3
- 2.Re4#
- 1...Sf2
- 2.Qg7#
- 1...Sge3
- 2.Re4#
- 2.Qg7#
- 1...Se1
- 2.Re4#
- 1...Sf6
- 2.Sd3#
- 1...Sxb4!
- threat
- 1.Qc5+?
- 1...bxc5
- 2.Rd5#
- 1...Rxc5!
- 1...bxc5
- 1.Qa1+?
- 1...Sd4
- 2.Qxd4#
- 1...Sxa1!
- 1...Sd4
- 1.Qxg4?
- threat
- 2.Sc4#
- 2.Sf7#
- 2.Qf5#
- 2.Qe6#
- 2.Qg7#
- 1...Rxb4
- 2.Sf7#
- 2.Rd5#
- 2.Qf5#
- 2.Qe6#
- 2.Qg7#
- 1...Rh5
- 2.Sc4#
- 2.Sf7#
- 2.Qxh5#
- 2.Qe6#
- 2.Qg7#
- 1...Rc5
- 2.Sf7#
- 2.Qf5#
- 2.Qe6#
- 2.Qg7#
- 1...Sa3
- 2.Sf7#
- 2.Qe2#
- 2.Qf5#
- 2.Qe6#
- 2.Qg7#
- 1...Se3
- 2.Sf7#
- 2.Qe6#
- 2.Qg7#
- 1...Sd4
- 2.Sc4#
- 2.Sf7#
- 2.Qg7#
- 1...f3
- 2.Sc4#
- 2.Sf7#
- 2.Qf5#
- 1...Rxg4!
- threat
- 1.Sxc2?
- Keys
- 1.Rd2!
- threat
- 2.Sd3#
- 1...Rxb4
- 2.Rd5#
- 1...Sxb4
- 2.Qd4#
- 2.Qa1#
- 1...f3
- 2.Qg3#
- 1...Rd5
- 2.Rxd5#
- 1...Se1
- 2.Qd4#
- 1...Sce3
- 2.Qa1#
- 1...Sf2
- 2.Qg7#
- 1...Sge3
- 2.Qg7#
- threat
- 1.Rd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(f);N_GUARD,XS(D)::R1(C)
- R(f);N_GUARD::R1(C),XR(f)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- S(d);OGATE::QAB(A)
- P(c);OGATEB::QAB(A)
- Tries
- Try
- S(D);XS(a)
- Threat
- QAB1(A)
- Vars
- R(f);N_GUARD::R1(C)
- R(f);N_GUARD::R1(C),XR(f)
- S(d);OGATE::QAB(A)
- Refutation
- P(h);XP(E)
- Try
- B(B);XP(k)
- Threat
- S(D)
- Vars
- R(f);N_GUARD,XS(D)::R1(C)
- P(c);OGATEB::QAB(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(f);
- Try
- R(C);
- Threat
- S(D)
- Vars
- R(f);N_GUARD,XS(D)::R1(C)
- S(a);N_GUARD,XS(D)::QAB1(A)
- P(c);OGATEB::QAB(A)
- R(f);N_GUARD::R1(C),XR(f)
- S(a);N_GUARD::QAB1(A)
- S(d);OGATE::QAB(A)
- Refutation
- S(a);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD,XS(D)::R1(C)
- S(a);XR(C)::S(D)
- S(a);::R1(C)
- S(d);OGATE::QAB(A)
- S(d);::S(D)
- Refutation
- S(a);XS(D)
- Try
- Q(A);CHECK
- Vars
- P(h);XQ(A)::R1(C)
- Refutation
- R(f);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);XS(d)
- Threat
- DUALS(5)
- Refutation
- R(e);XQ(A)
- Try
- Actual
- R(C);
- Threat
- S(D)
- Vars
- R(f);N_GUARD,XS(D)::R1(C)
- P(c);OGATEB::QAB(A)
- R(f);N_GUARD::R1(C),XR(f)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB(A)
- S(d);OGATE::QAB(A)
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).