MESON Chess Problem Database
Problem Display
PID: 225408 (B7/2B1N3/6r1/4p3/pPpk1p1n/7R/KP2Pp1Q/1N5n w - - 0 1)
Brabec, Juraj
Praca, 1957
#2
10 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Bb6#
- 1...Rg2
- 2.Bb6#
- 1...Rg3
- 2.Bb6#
- 1...Rg4
- 2.Bb6#
- 1...Rg5
- 2.Bb6#
- 1...Rb6
- 2.Bxb6#
- 1...Rg7
- 2.Bb6#
- 1...Rg8
- 2.Bb6#
- 1...Sg3
- 2.Qxf2#
- 1...Sg2
- 2.Sf5#
- 1...Sf3
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...f3
- 2.Qxe5#
- 1...Rg1
- Tries
- 1.Sa3?
- threat
- 2.Sc2#
- 2.Sb5#
- 1...Rg3
- 2.Sc2#
- 2.Bb6#
- 1...Sg3
- 2.Sc2#
- 2.Qxf2#
- 1...Sf3
- 2.Sc2#
- 2.Sf5#
- 1...f3
- 2.Sc2#
- 2.Qxe5#
- 1...Rb6
- 2.Sc2#
- 2.Bxb6#
- 1...c3
- 2.Rd3#
- 2.bxc3#
- 1...Rc6!
- threat
- 1.Sxg6?
- threat
- 2.Bxe5#
- 2.Bb6#
- 1...Sxg6
- 2.Bb6#
- 1...Sg3
- 2.Bb6#
- 2.Qxf2#
- 1...Sf3
- 2.Bb6#
- 1...f3
- 2.Bb6#
- 2.Qxe5#
- 1...e4
- 2.Be5#
- 2.Bb6#
- 1...c3!
- threat
- 1.Qxf4+?
- 1...e4
- 2.Be5#
- 2.Qd2#
- 2.Qe3#
- 2.Qe5#
- 2.Qxe4#
- 1...exf4!
- 1...e4
- 1.Qxh1?
- threat
- 2.Qe4#
- 2.Qd5#
- 2.Qd1#
- 1...Rg3
- 2.Bb6#
- 2.Qe4#
- 1...Sf3
- 2.Sf5#
- 1...c3
- 2.Qe4#
- 2.Qd5#
- 1...f1Q
- 2.Qe4#
- 2.Qd5#
- 1...f1S
- 2.Qe4#
- 2.Qd5#
- 1...f1B
- 2.Qe4#
- 2.Qd5#
- 1...f1R
- 2.Qe4#
- 2.Qd5#
- 1...Rg1
- 2.Sc6#
- 2.Bb6#
- 2.Qe4#
- 2.Qd5#
- 1...Rg2
- 2.Bb6#
- 2.Qd1#
- 1...Rc6
- 2.Sxc6#
- 2.Qd5#
- 1...Rd6
- 2.Qe4#
- 2.Qd1#
- 1...Sg2
- 2.Sf5#
- 2.Qd1#
- 1...e4
- 2.Qxe4#
- 2.Qd1#
- 1...f3!
- threat
- 1.Qg2?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Rxg2
- 2.Bb6#
- 1...Sxg2
- 2.Sf5#
- 1...Rg3
- 2.Bb6#
- 2.Qe4#
- 1...Sg3
- 2.Qxf2#
- 1...Sf3
- 2.Sf5#
- 1...Rc6
- 2.Sxc6#
- 2.Qd5#
- 1...Rd6
- 2.Qe4#
- 1...e4
- 2.Qxe4#
- 1...f3!
- threat
- 1.Sa3?
- Keys
- 1.Sc3!
- threat
- 2.Sb5#
- 1...Rg3
- 2.Bb6#
- 1...Sg3
- 2.Qxf2#
- 1...Sf3
- 2.Sf5#
- 1...f3
- 2.Qxe5#
- 1...Rb6
- 2.Bxb6#
- 1...Rc6
- 2.Sxc6#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(i);N_GUARD::B(H)
- R(i);N_GUARD::B(H),XR(i)
- S(a);N_GUARD::QAB(E),XP(b)
- S(g);N_GUARD::S(I)
- S(g);N_GUARD::S(I),XS(g)
- P(f);OGATE::QAB1(E),XP(h)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Refutation
- R(i);
- Try
- S(I);XR(i)
- Threat
- DUALS(2)
- Vars
- S(g);XS(I)::B(H)
- S(g);::B(H)
- Refutation
- P(d);
- Try
- Q(E);CHECK,XP(f)
- Refutation
- P(h);XQ(E)
- Try
- Q(E);XS(a)
- Threat
- DUALS(3)
- Vars
- S(g);N_GUARD::S(I)
- Refutation
- P(f);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(i);N_GUARD,XQ(E)::B(H)
- S(g);N_GUARD,XQ(E)::S(I)
- S(a);N_GUARD::QAB(E),XP(b)
- S(g);N_GUARD::S(I)
- R(i);::QAR1(E)
- P(h);::QAR1(E),XP(h)
- Refutation
- P(f);
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- R(i);N_GUARD::B(H)
- S(a);N_GUARD::QAB(E),XP(b)
- S(g);N_GUARD::S(I)
- P(f);OGATE::QAB1(E),XP(h)
- R(i);N_GUARD::B(H),XR(i)
- R(i);N_GUARD::S(I),XR(i)
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).