MESON Chess Problem Database
Problem Display
PID: 6809 (qn6/2bp2p1/6n1/2p5/p3kpP1/K2R1brR/1QB1N1r1/B7 w - - 0 1)
Andrade, Barry Jack da Costa
Stubbs, Arthur Goodwin
1st Prize, Social Chess Quarterly (The), 1933
#2
8 + 13
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Se5
- 2.Sc3#
- 1...c4
- 2.Qd4#
- 1...d5
- 2.Rb3#
- 1...Se5
- Tries
- 1.Qe5+?
- 1...Sxe5
- 2.Sc3#
- 1...Bxe5!
- 1...Sxe5
- 1.Qf6?
- threat
- 2.Sc3#
- 2.Qf5#
- 2.Qxg6#
- 1...Rxe2
- 2.Qf5#
- 2.Qxg6#
- 1...Rxg4
- 2.Sc3#
- 1...Bxe2
- 2.Qf5#
- 2.Qxg6#
- 1...Bxg4
- 2.Sc3#
- 1...Qd5
- 2.Sc3#
- 1...Qc6
- 2.Sc3#
- 2.Qf5#
- 1...Qa5
- 2.Qf5#
- 2.Qxg6#
- 1...Qa6
- 2.Sc3#
- 2.Qf5#
- 1...Ba5
- 2.Qf5#
- 2.Qxg6#
- 1...Be5
- 2.Qf5#
- 2.Qxg6#
- 1...Sh4
- 2.Sc3#
- 1...Se5
- 2.Sc3#
- 2.Qxf4#
- 2.Qf5#
- 1...Se7
- 2.Sc3#
- 1...Sf8
- 2.Sc3#
- 2.Qf5#
- 1...Sh8
- 2.Sc3#
- 2.Qf5#
- 1...gxf6!
- threat
- 1.Qb3?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Re3#
- 2.Rxf3#
- 2.Rd5#
- 2.Rd6#
- 2.Rxd7#
- 2.Qc4#
- 1...Rxe2
- 2.Rd2#
- 2.Re3#
- 2.Qc4#
- 1...Rxg4
- 2.Rd1#
- 2.Rd2#
- 2.Re3#
- 2.Rdxf3#
- 2.Rd5#
- 2.Rd6#
- 2.Rxd7#
- 1...Bxe2
- 2.Re3#
- 2.Qc4#
- 1...Bxg4
- 2.Re3#
- 2.Rf3#
- 2.Rdxg3#
- 1...Qd5
- 2.Re3#
- 2.Rxd5#
- 2.Qxd5#
- 1...Qa6
- 2.Re3#
- 2.Qd5#
- 1...Be5
- 2.Rd1#
- 2.Rd2#
- 2.Rc3#
- 2.Re3#
- 2.Rxf3#
- 2.Rd4#
- 2.Rd5#
- 2.Rd6#
- 2.Rxd7#
- 1...Bd6
- 2.Rd1#
- 2.Rd2#
- 2.Re3#
- 2.Rxf3#
- 2.Rd5#
- 2.Rxd6#
- 2.Qc4#
- 1...Se5
- 2.Sc3#
- 2.Re3#
- 2.Rd4#
- 1...Sc6
- 2.Rd1#
- 2.Rd2#
- 2.Re3#
- 2.Rxf3#
- 2.Rd5#
- 2.Rd6#
- 2.Rxd7#
- 2.Qd5#
- 1...c4
- 2.Rd1#
- 2.Rd2#
- 2.Rd6#
- 2.Rxd7#
- 2.Qxc4#
- 1...d5
- 2.Rd1#
- 2.Rd2#
- 2.Re3#
- 2.Rxf3#
- 2.Rxd5#
- 1...d6
- 2.Rd1#
- 2.Rd2#
- 2.Re3#
- 2.Rxf3#
- 2.Rd5#
- 2.Rxd6#
- 2.Qc4#
- 1...axb3+!
- threat
- 1.Qb4+?
- 1...c4
- 2.Qxc4#
- 1...cxb4+!
- 1...c4
- 1.Qe5+?
- Keys
- 1.Qa2!
- threat
- 2.Qc4#
- 1...Rxg4
- 2.Rdxf3#
- 1...Bxg4
- 2.Rdxg3#
- 1...Qd5
- 2.Qxd5#
- 1...Qa6
- 2.Qd5#
- 1...Be5
- 2.Rc3#
- 1...Se5
- 2.Sc3#
- 1...Sc6
- 2.Qd5#
- 1...c4
- 2.Qxc4#
- 1...d5
- 2.Rb3#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- S(h);SBLOCK::S(D)
- P(g);N_GUARD::QAR1(B)
- P(j);SBLOCK::B(C)+R(F)
- Tries
- Try
- Q(B);CHECK
- Vars
- S(h);SBLOCK,XQ(B)::S(D)
- Refutation
- B(i);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(c);XP(H)::S(D)
- B(b);P_PINR(F),XP(H)::S(D)
- Q(l);::S(D)
- S(h);::S(D)
- Refutation
- P(k);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(8)
- Refutation
- P(d);CHECK,XQ(B)
- Try
- Q(B);CHECK
- Vars
- P(g);P_SPINP(g)::QAR2(B),XP(g)
- Refutation
- P(g);CHECK,XQ(B)
- Try
- Actual
- Q(B);
- Threat
- QAR2(B)
- Vars
- R(c);XP(H)::B(C)+R(F),XB(b)
- B(b);OGATE,P_PINR(F),XP(H)::B(C)+R(F),XR(c)
- Q(l);N_GUARD::QAB1(B),XQ(l)
- Q(l);N_GUARD::QAB1(B)
- B(i);SBLOCK::B(C)+R(F)
- S(h);SBLOCK::S(D)
- S(m);S_CUTQ(l)::QAB1(B)
- P(g);::QAR2(B),XP(g)
- P(j);SBLOCK::B(C)+R(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).