MESON Chess Problem Database
Problem Display
PID: 172063 (4K3/2P1Bpp1/1b2k3/5RQ1/n1rp2Rp/2p5/2N3n1/4qr1b w - - 0 1)
Apro, Laszlo
Brisbane Courier, 1932
#2
7 + 13
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Re4#
- 2.Re5#
- 1...Qf2
- 2.Re4#
- 2.Re5#
- 1...Qa1
- 2.Re4#
- 2.Re5#
- 1...Qb1
- 2.Re4#
- 2.Re5#
- 1...Qc1
- 2.Re4#
- 2.Re5#
- 1...Qd1
- 2.Re4#
- 2.Re5#
- 1...Qe4
- 2.Rxe4#
- 1...Qe5
- 2.Rxe5#
- 1...Rb4
- 2.c8Q#
- 2.c8B#
- 1...Rc5
- 2.Sxd4#
- 1...Bc5
- 2.c8Q#
- 2.c8B#
- 1...Se3
- 2.Re5#
- 1...g6
- 2.Qf6#
- 1...Qd2
- Tries
- 1.Rc5?
- threat
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Rxc5
- 2.Sxd4#
- 1...Bxc5
- 2.c8Q#
- 2.c8B#
- 1...Bxc7
- 2.Qd5#
- 1...Qd2
- 2.Re4#
- 2.Re5#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Qf2
- 2.Re4#
- 2.Re5#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Qg3
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Qa1
- 2.Re4#
- 2.Re5#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Qb1
- 2.Re4#
- 2.Re5#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Qc1
- 2.Re4#
- 2.Re5#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Qd1
- 2.Re4#
- 2.Re5#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Qe2
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Qe3
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Qe4
- 2.Rxe4#
- 2.c8Q#
- 2.c8B#
- 1...Qe5
- 2.Rxe5#
- 2.Qxe5#
- 2.c8Q#
- 2.c8B#
- 1...Rg1
- 2.Qd5#
- 2.Qf5#
- 2.c8Q#
- 2.c8B#
- 1...Rf2
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Rf3
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Rf4
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Rf5
- 2.Qxf5#
- 2.c8Q#
- 2.c8B#
- 1...Rf6
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Rb4
- 2.Rc6#
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Ba5
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Ba7
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Se3
- 2.Re5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Sf4
- 2.Qf5#
- 2.c8Q#
- 2.c8B#
- 1...Sb2
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...d3
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...h3
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...f5
- 2.Qg6#
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...g6
- 2.Qd5#
- 2.c8Q#
- 2.c8B#
- 1...Sxc5!
- threat
- 1.Rc5?
- Keys
- 1.Rb5!
- threat
- 2.Qd5#
- 1...Qe4
- 2.Rxe4#
- 1...Qe5
- 2.Rxe5#
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rc5
- 2.Sxd4#
- 1...Bc5
- 2.c8Q#
- 2.c8B#
- 1...Se3
- 2.Re5#
- 2.Qe5#
- 1...Sf4
- 2.Qf5#
- 1...Sc5
- 2.Rxb6#
- 1...f5
- 2.Qg6#
- threat
- 1.Rb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- Q(a);N_GUARD::R(B),XQ(a)
- Q(a);N_GUARD::R1(C),XQ(a)
- R(g);N_GUARD::P=Q
- R(g);N_GUARD,S_CUTB(j)::S(A),XP(h)
- B(j);S_CUTR(g)::P=Q
- S(d);S_CUTQ(a)::R1(C)
- P(m);N_GUARD::QAR1(D)
- Tries
- Try
- R(C);
- Threat
- DUALS(3)
- Vars
- R(g);N_GUARD,XR(C)::S(A),XP(h)
- B(j);XR(C)::P=Q
- B(j);XP(E)::QAB1(D)
- Refutation
- S(f);XR(C)
- Try
- Actual
- R(C);
- Threat
- QAB1(D)
- Vars
- Q(a);N_GUARD::R(B),XQ(a)
- R(b);N_GUARD::QAB1(D),XR(b)
- R(g);N_GUARD,S_CUTB(j)::S(A),XP(h)
- B(j);S_CUTR(g)::P=Q
- S(d);S_CUTR(b)::QAB1(D)
- S(f);N_GUARD,S_CUTR(g)::R(C),XB(j)
- P(l);N_GUARD,S_CUTR(b)::QAR2(D)
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).