MESON Chess Problem Database
Problem Display
PID: 45819 (b2R1Q2/K1p5/1pk4r/bNN5/PrPp4/B2n4/1q6/8 w - - 0 1)
Maleika, Gerhard
4th Comm., Die Schwalbe, 1995
#2
8 + 10
| 23 | Die Schwalbe | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sxd4#
- 1...Qxa3
- 2.Sxd4#
- 1...Qb1
- 2.Sxd4#
- 1...Qa2
- 2.Sxd4#
- 1...Qc2
- 2.Sxd4#
- 1...Qd2
- 2.Sxd4#
- 1...Qe2
- 2.Sxd4#
- 1...Qg2
- 2.Sxd4#
- 1...Qh2
- 2.Sxd4#
- 1...Qb3
- 2.Sxd4#
- 1...Rb3
- 2.Qxh6#
- 2.Qf3#
- 2.Qe8#
- 1...Rxa4
- 2.Qxh6#
- 2.Qf3#
- 2.Qe8#
- 1...Rxc4
- 2.Qxh6#
- 2.Qf3#
- 2.Qe8#
- 1...Rxb5
- 2.Qxh6#
- 2.Qf3#
- 2.Qe8#
- 1...bxc5
- 2.Qxh6#
- 2.Qf3#
- 2.Qe8#
- 1...Qc1
- Tries
- 1.Kxa8?
- threat
- 2.Sa7#
- 1...Rxb5
- 2.Qxh6#
- 2.Qf3#
- 2.Qe8#
- 1...bxc5
- 2.Qxh6#
- 1...Rd6!
- threat
- 1.Kb8?
- threat
- 2.Sa7#
- 1...Rxb5
- 2.Qxh6#
- 2.Qf3#
- 2.Qe8#
- 1...bxc5
- 2.Qxh6#
- 1...Rd6!
- threat
- 1.Sa6?
- threat
- 2.Sb8#
- 2.Qxh6#
- 2.Qf3#
- 2.Qe8#
- 1...Rxb5
- 2.Sb8#
- 2.Qxh6#
- 2.Qe8#
- 1...Qc1
- 2.Sxd4#
- 2.Sb8#
- 2.Qf3#
- 2.Qe8#
- 1...Qd2
- 2.Sxd4#
- 2.Sb8#
- 2.Qf3#
- 2.Qe8#
- 1...Qe2
- 2.Sxd4#
- 2.Sb8#
- 1...Qf2
- 2.Sb8#
- 2.Qe8#
- 1...Qg2
- 2.Sxd4#
- 2.Sb8#
- 2.Qe8#
- 1...Qh2
- 2.Sxd4#
- 2.Sb8#
- 2.Qf3#
- 2.Qe8#
- 1...Rh1
- 2.Sb8#
- 2.Qf3#
- 2.Qf6#
- 2.Qe8#
- 1...Rh2
- 2.Sb8#
- 2.Qf3#
- 2.Qf6#
- 2.Qe8#
- 1...Rh3
- 2.Sb8#
- 2.Qf6#
- 2.Qe8#
- 1...Rh4
- 2.Sb8#
- 2.Qf6#
- 2.Qe8#
- 1...Rh5
- 2.Sb8#
- 2.Qf6#
- 2.Qe8#
- 1...Re6
- 2.Sb8#
- 1...Rf6
- 2.Sb8#
- 2.Qxf6#
- 2.Qe8#
- 1...Rg6
- 2.Sb8#
- 2.Qf3#
- 2.Qe8#
- 1...Rh7
- 2.Sb8#
- 2.Qf3#
- 2.Qf6#
- 1...Rh8
- 2.Sb8#
- 2.Qf3#
- 2.Qf6#
- 1...Se1
- 2.Sb8#
- 2.Qxh6#
- 2.Qe8#
- 1...Sf2
- 2.Sb8#
- 2.Qxh6#
- 2.Qe8#
- 1...Sf4
- 2.Sb8#
- 2.Qe8#
- 1...Sc5
- 2.Sb8#
- 1...Se5
- 2.Sb8#
- 1...Rd6!
- threat
- 1.Sd7?
- threat
- 2.Sb8#
- 2.Qxh6#
- 2.Qf3#
- 1...Rxc4
- 2.Sb8#
- 2.Qf3#
- 1...Rxb5
- 2.Sb8#
- 2.Qxh6#
- 1...Qc1
- 2.Sxd4#
- 2.Sb8#
- 2.Qf3#
- 1...Qd2
- 2.Sxd4#
- 2.Sb8#
- 2.Qf3#
- 1...Qe2
- 2.Sxd4#
- 2.Sb8#
- 1...Qf2
- 2.Sb8#
- 1...Qg2
- 2.Sxd4#
- 2.Sb8#
- 1...Qh2
- 2.Sxd4#
- 2.Sb8#
- 2.Qf3#
- 1...Rh1
- 2.Sb8#
- 2.Qf3#
- 2.Qf6#
- 1...Rh2
- 2.Sb8#
- 2.Qf3#
- 2.Qf6#
- 1...Rh3
- 2.Sb8#
- 2.Qf6#
- 1...Rh4
- 2.Sb8#
- 2.Qf6#
- 1...Rh5
- 2.Sb8#
- 2.Qf6#
- 1...Re6
- 2.Sb8#
- 1...Rf6
- 2.Sb8#
- 2.Qxf6#
- 1...Rg6
- 2.Sb8#
- 2.Qf3#
- 1...Rh7
- 2.Sb8#
- 2.Qf3#
- 2.Qf6#
- 1...Rh8
- 2.Sb8#
- 2.Qf3#
- 2.Qf6#
- 1...Se1
- 2.Se5#
- 2.Sb8#
- 2.Qxh6#
- 1...Sf2
- 2.Se5#
- 2.Sb8#
- 2.Qxh6#
- 1...Sf4
- 2.Se5#
- 2.Sb8#
- 1...Sc5
- 2.Se5#
- 2.Sb8#
- 1...Se5
- 2.Sxe5#
- 2.Sb8#
- 1...Rd6!
- threat
- 1.Rd5?
- threat
- 2.Qxh6#
- 2.Qxa8#
- 2.Qe8#
- 1...Rxc4
- 2.Qxa8#
- 1...Rd6
- 2.Qxa8#
- 1...Qc1
- 2.Sxd4#
- 2.Qxa8#
- 2.Qe8#
- 1...Qd2
- 2.Sxd4#
- 2.Qxa8#
- 2.Qe8#
- 1...Qe2
- 2.Sxd4#
- 2.Qxa8#
- 1...Qf2
- 2.Qxa8#
- 2.Qe8#
- 1...Qg2
- 2.Sxd4#
- 2.Qxa8#
- 2.Qe8#
- 1...Qh2
- 2.Sxd4#
- 2.Qxa8#
- 2.Qe8#
- 1...Rh1
- 2.Qf6#
- 2.Qxa8#
- 2.Qe8#
- 1...Rh2
- 2.Qf6#
- 2.Qxa8#
- 2.Qe8#
- 1...Rh3
- 2.Qf6#
- 2.Qxa8#
- 2.Qe8#
- 1...Rh4
- 2.Qf6#
- 2.Qxa8#
- 2.Qe8#
- 1...Rh5
- 2.Qf6#
- 2.Qxa8#
- 2.Qe8#
- 1...Re6
- 2.Qxa8#
- 1...Rf6
- 2.Qxf6#
- 2.Qxa8#
- 2.Qe8#
- 1...Rg6
- 2.Qxa8#
- 2.Qe8#
- 1...Rh7
- 2.Qf6#
- 2.Qxa8#
- 1...Rh8
- 2.Qf6#
- 1...Bb7
- 2.Qxh6#
- 2.Qe8#
- 1...Sf4
- 2.Qxa8#
- 2.Qe8#
- 1...Se5
- 2.Qxa8#
- 1...Sxc5!
- threat
- 1.Qd6+?
- 1...cxd6
- 2.Rc8#
- 1...Rxd6!
- 1...cxd6
- 1.Qe7?
- threat
- 2.Qxc7#
- 1...Rxb5
- 2.Qe4#
- 2.Qd7#
- 2.Qe8#
- 1...bxc5
- 2.Qe4#
- 2.Qd7#
- 2.Qe8#
- 1...Qh2
- 2.Sxd4#
- 1...Rh7!
- threat
- 1.Qf7?
- threat
- 2.Qd5#
- 2.Qxc7#
- 1...Rxb5
- 2.Qd5#
- 2.Qe8#
- 2.Qf3#
- 2.Qd7#
- 1...bxc5
- 2.Qd5#
- 2.Qe8#
- 2.Qf3#
- 2.Qd7#
- 1...Rd6
- 2.Qxc7#
- 1...Qg2
- 2.Qxc7#
- 1...Qh2
- 2.Qd5#
- 1...Rh5
- 2.Qxc7#
- 1...Re6
- 2.Qxc7#
- 1...Rh7
- 2.Qd5#
- 1...Sf4
- 2.Qxc7#
- 1...Kxc5!
- threat
- 1.Kxa8?
- Keys
- 1.Rc8!
- threat
- 2.Rxc7#
- 1...Rxc4
- 2.Qf3#
- 1...Rxb5
- 2.Qxh6#
- 1...bxc5
- 2.Qe8#
- 1...Qh2
- 2.Sxd4#
- 1...Rh7
- 2.Qd6#
- threat
- 1.Rc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::S(D),XP(d)
- Q(a);N_GUARD,XB(A)::S(D),XP(d)
- Tries
- Try
- K(F);P-FLIGHT,XB(j)
- Threat
- S(D)
- Vars
- P(f);SBLOCK,XS(E)::QAR(H),XR(h)
- Refutation
- R(h);
- Try
- K(F);S_FLIGHT
- Threat
- S(D)
- Vars
- P(f);P_PINS(D),SBLOCK,XS(E)::QAR(H),XR(h)
- Refutation
- R(h);
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- R(h);::S(E)
- S(b);::S(E)
- Refutation
- R(h);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(a);::S(E)
- R(h);::S(E)
- Refutation
- R(h);
- Try
- R(G);
- Threat
- DUALS(3)
- Vars
- R(c);XP(C)::QAB(H),XB(j)
- R(h);::QAB(H),XB(j)
- R(h);N_GUARD::QAR(H)
- S(b);::QAB(H),XB(j)
- Refutation
- S(b);XS(E)
- Try
- Q(H);CHECK
- Vars
- P(i);S_CUTR(h),XQ(H)::R(G)
- Refutation
- R(h);XQ(H)
- Try
- Q(H);
- Threat
- QAR1(H),XP(i)
- Vars
- Q(a);N_GUARD::S(D),XP(d)
- Refutation
- R(h);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(h);::QAR1(H),XP(i)
- Q(a);::QAR1(H),XP(i)
- Q(a);::QAB1(H)
- R(h);::QAB1(H)
- S(b);::QAR1(H),XP(i)
- Refutation
- K(g);P-FLIGHT,P_SPINR(c),XS(E)
- Try
- Actual
- R(G);P_PINP(i)
- Threat
- R1(G),XP(i)
- Vars
- R(c);XP(C)::QAB(H)
- R(c);XS(D)::QAR(H),XR(h)
- P(f);SBLOCK,XS(E)::QAB(H)
- Q(a);N_GUARD::S(D),XP(d)
- R(h);N_GUARD::QAR1(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).