MESON Chess Problem Database
Problem Display
PID: 109774 (1n4NK/2q2p2/R7/1P1k3p/1Q1p1r1r/2PNRPnB/b3p3/8 w - - 0 1)
Zarur, Almiro Elias
Boletim da UBP, 1964
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Se7#
- 2.Re5#
- 2.Rd6#
- 2.Qc5#
- 1...Qe5+
- 2.Rxe5#
- 1...Qb6
- 2.Se7#
- 2.Re5#
- 1...Qd6
- 2.Rxd6#
- 1...Qd8
- 2.Re5#
- 2.Qc5#
- 1...Qxc3
- 2.Se7#
- 2.Re5#
- 2.Rd6#
- 1...Qc4
- 2.Se7#
- 2.Re5#
- 2.Rd6#
- 2.Qd6#
- 1...Qc5
- 2.Re5#
- 2.Qxc5#
- 1...Qc6
- 2.Se7#
- 2.Re5#
- 1...Qa7
- 2.Re5#
- 2.Rd6#
- 1...Qb7
- 2.Re5#
- 2.Rd6#
- 2.Qc5#
- 1...Qd7
- 2.Re5#
- 2.Qc5#
- 1...Qe7
- 2.Sxe7#
- 1...Qc8
- 2.Re5#
- 2.Rd6#
- 1...Re4
- 2.Sf6#
- 1...Rfg4
- 2.Sf6#
- 1...Rf6
- 2.Sxf6#
- 1...Se4
- 2.Qxd4#
- 1...Sf5
- 2.Sf6#
- 1...Sc6
- 2.Qc5#
- 1...Sd7
- 2.Se7#
- 1...f5
- 2.Sf6#
- 1...f6
- 2.Be6#
- 1...Qa5
- Tries
- 1.Sxf4+?
- 1...Qxf4
- 2.Se7#
- 1...Rxf4!
- 1...Qxf4
- 1.Bf5?
- threat
- 2.Sf6#
- 1...Qe5+
- 2.Rxe5#
- 1...Qb6
- 2.Se7#
- 2.Re5#
- 1...Qd6
- 2.Rxd6#
- 1...Qd8
- 2.Re5#
- 2.Qc5#
- 1...Qc6
- 2.Se7#
- 2.Re5#
- 1...Qe7
- 2.Sxe7#
- 1...Qc8
- 2.Re5#
- 2.Rd6#
- 1...Se4
- 2.Qxd4#
- 1...Sd7
- 2.Se7#
- 1...f6
- 2.Sxf6#
- 2.Be6#
- 1...Rxf5!
- threat
- 1.Re4?
- threat
- 2.Qxd4#
- 1...Qe5+
- 2.Rxe5#
- 1...Qxc3
- 2.Se7#
- 2.Re5#
- 2.Rd6#
- 1...Rxe4
- 2.Sf6#
- 1...dxc3
- 2.Qd4#
- 1...Qb6
- 2.Se7#
- 2.Re5#
- 1...Qc4
- 2.Se7#
- 2.Re5#
- 2.Rd6#
- 2.Qd6#
- 1...Qc5
- 2.Re5#
- 2.Qxc5#
- 1...Qa7
- 2.Re5#
- 2.Rd6#
- 1...Sf5
- 2.Sf6#
- 1...Sc6
- 2.Qc5#
- 1...Bc4!
- threat
- 1.Rc6?
- threat
- 2.Qc5#
- 1...Qe5+
- 2.Rxe5#
- 1...Qxc6
- 2.Se7#
- 2.Re5#
- 1...Qb6
- 2.Se7#
- 2.Re5#
- 2.Qd6#
- 1...Qd6
- 2.Rxd6#
- 2.Qxd6#
- 1...Qa7
- 2.Re5#
- 2.Rd6#
- 2.Qd6#
- 1...Qe7
- 2.Sxe7#
- 1...Se4
- 2.Qxd4#
- 1...Sd7
- 2.Se7#
- 1...Sa6!
- threat
- 1.Qb3+?
- 1...Qc4
- 2.Se7#
- 2.Re5#
- 1...Bxb3!
- 1...Qc4
- 1.c4+?
- 1...Qxc4
- 2.Se7#
- 2.Re5#
- 2.Rd6#
- 2.Qd6#
- 1...Bxc4!
- 1...Qxc4
- 1.Sxf4+?
- Keys
- 1.Bd7!
- threat
- 2.Se7#
- 1...Qe5+
- 2.Rxe5#
- 1...Qxd7
- 2.Re5#
- 2.Qc5#
- 1...Qd6
- 2.Rxd6#
- 1...Qd8
- 2.Re5#
- 2.Rd6#
- 2.Qc5#
- 1...Qc5
- 2.Re5#
- 2.Qxc5#
- 1...Qc8
- 2.Re5#
- 2.Rd6#
- 1...Re4
- 2.Sf6#
- 1...Sf5
- 2.Sf6#
- 1...Sc6
- 2.Qc5#
- threat
- 1.Bd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- Q(i);CHECK,N_GUARD::R1(C),XQ(i)
- Q(i);N_GUARD::R1(H),XQ(i)
- Q(i);N_GUARD::S(I),XQ(i)
- R(e);N_GUARD::S(I)
- R(e);N_GUARD::S(I),XR(e)
- S(c);S_CUTR(e)::QAR1(F),XP(d)
- S(c);S_CUTR(e)::S(I)
- S(k);S_CUTQ(i)::QAR1(F)
- S(k);S_CUTQ(i)::S(I)
- P(j);S_CUTR(e)::S(I)
- P(j);N_GUARD::B(E)
- Tries
- Try
- S(B);CHECK,XR(e)
- Vars
- Q(i);XS(B)::S(I)
- Refutation
- R(f);XS(B)
- Try
- B(E);
- Threat
- S(I)
- Vars
- Q(i);CHECK,N_GUARD::R1(C),XQ(i)
- Q(i);N_GUARD::R1(H),XQ(i)
- Q(i);N_GUARD::S(I),XQ(i)
- S(c);S_CUTR(e)::QAR1(F),XP(d)
- S(k);S_CUTQ(i)::S(I)
- Refutation
- R(e);XB(E)
- Try
- R(C);
- Threat
- QAR1(F),XP(d)
- Vars
- Q(i);CHECK,N_GUARD::R1(C),XQ(i)
- R(e);N_GUARD,XR(C)::S(I)
- P(d);XP(A)::QAR1(F)
- S(c);S_CUTR(e)::S(I)
- S(k);S_CUTQ(i)::QAR1(F)
- Refutation
- B(a);
- Try
- R(H);
- Threat
- QAR1(F)
- Vars
- Q(i);CHECK,N_GUARD::R1(C),XQ(i)
- Q(i);N_GUARD::S(I),XQ(i)
- S(c);S_CUTR(e)::QAR1(F),XP(d)
- S(k);S_CUTQ(i)::S(I)
- Refutation
- S(k);
- Try
- Q(F);CHECK
- Refutation
- B(a);XQ(F)
- Try
- P(A);CHECK
- Refutation
- B(a);XP(A)
- Try
- Actual
- B(E);
- Threat
- S(I)
- Vars
- Q(i);CHECK,N_GUARD::R1(C),XQ(i)
- Q(i);N_GUARD::R1(H),XQ(i)
- R(e);N_GUARD::S(I)
- S(c);S_CUTR(e)::S(I)
- S(k);S_CUTQ(i)::QAR1(F)
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).