MESON Chess Problem Database
Problem Display
PID: 222794 (4B3/p1Pr1P1K/P1p2R1B/3k4/2R5/2rP1N2/2nN4/1Q6 w - - 0 1)
Joseph, Samuel M
St. Louis Globe Democrat, 1884
#2
12 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re7
- 2.Bxc6#
- 1...Rxf7+
- 2.Bxf7#
- 1...Rd8
- 2.Bxc6#
- 2.cxd8Q#
- 2.cxd8R#
- 1...c5
- 2.Qb7#
- 1...Re7
- Tries
- 1.Rd4+?
- 1...Kc5
- 2.Se4#
- 1...Sxd4!
- 1...Kc5
- 1.Qg1?
- threat
- 2.Qc5#
- 2.Qg5#
- 1...Rxf7+
- 2.Bxf7#
- 1...Rxc4
- 2.Qg5#
- 2.dxc4#
- 1...Re7
- 2.Bxc6#
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 1...c5
- 2.Qxc5#
- 2.Qg5#
- 1...Se3!
- threat
- 1.Qb4?
- threat
- 2.Qc5#
- 1...Rxf7+
- 2.Bxf7#
- 1...Rxc4
- 2.Qxc4#
- 2.dxc4#
- 1...c5
- 2.Qxc5#
- 2.Qb7#
- 1...Sxb4!
- threat
- 1.Qb5+?
- 1...c5
- 2.Qc6#
- 2.Qxd7#
- 2.Qxc5#
- 2.Qb7#
- 1...cxb5!
- 1...c5
- 1.Qb6?
- threat
- 2.Qc5#
- 2.Qxc6#
- 1...Rxf7+
- 2.Bxf7#
- 1...Rxc4
- 2.dxc4#
- 1...Rxc7
- 2.Qc5#
- 1...Rd6
- 2.Qc5#
- 1...Sb4
- 2.Rd4#
- 2.Qd4#
- 2.Qc5#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qc5#
- 1...c5
- 2.Rf5#
- 2.Qxc5#
- 2.Qc6#
- 2.Qe6#
- 2.Qb7#
- 1...axb6!
- threat
- 1.c8Q?
- threat
- 2.Qxd7#
- 2.Qxc6#
- 1...Rxf7+
- 2.Bxf7#
- 1...Rd6
- 2.Rf5#
- 2.Qf5#
- 1...Rb7
- 2.Bxc6#
- 2.Qf5#
- 2.Qe6#
- 2.Qxc6#
- 1...Rc7
- 2.Qf5#
- 2.Qe6#
- 1...Re7
- 2.Bxc6#
- 2.Qxc6#
- 1...Rd8
- 2.Bxc6#
- 2.Qf5#
- 2.Qe6#
- 2.Qxc6#
- 2.Qxd8#
- 1...Sb4
- 2.Qxd7#
- 1...Sd4
- 2.Qxd7#
- 1...c5
- 2.Qxd7#
- 2.Qxc5#
- 2.Qc6#
- 1...Rxc4!
- threat
- 1.Rd4+?
- Keys
- 1.Bf8!
- 1...Rxf7+
- 2.Bxf7#
- 1...Rxd3
- 2.Rc5#
- 1...Rxc4
- 2.dxc4#
- 1...Rxc7
- 2.Rd6#
- 1...Ra3
- 2.Rc5#
- 1...Rb3
- 2.Rc5#
- 1...Rd6
- 2.Rxd6#
- 1...Re7
- 2.Bxc6#
- 1...Rd8
- 2.Bxc6#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sa1
- 2.Rd4#
- 1...Se1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Se3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...c5
- 2.Qb7#
- 1...Rxf7+
- 1.Bf8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- R(f);OGATE::B(L),XP(d)
- R(f);CHECK,OGATE,XP(J)::B(L),XR(f)
- P(d);OGATEB::QAB(A)
- Tries
- Try
- R(E);CHECK
- Vars
- K(c);P-FLIGHT::S(B)
- Refutation
- S(a);XR(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(f);CHECK,OGATE,XP(J)::B(L),XR(f)
- S(a);N_GUARD::QAR1(A),XS(a)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- R(f);CHECK,OGATE,XP(J)::B(L),XR(f)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- P(d);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(f);CHECK,OGATE,XP(J)::B(L),XR(f)
- R(b);OGATE,XR(E)::P(C),XR(b)
- R(f);XP(I)::QAR1(A)
- R(f);N_PINP(J)::QAR1(A)
- Refutation
- P(e);XQ(A)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- R(f);CHECK,OGATE,XP(J)::B(L),XR(f)
- S(a);::QAR2(I),XR(f)
- Refutation
- R(b);XR(E)
- Try
- Actual
- B(H);
- Vars
- R(f);CHECK,OGATE,XP(J)::B(L),XR(f)
- R(b);N_GUARD,XP(C)::R1(E)
- R(b);OGATE,XR(E)::P(C),XR(b)
- R(f);N_GUARD,XP(I)::R1(G)
- R(b);N_GUARD::R1(E)
- R(f);N_GUARD,N_PINP(J)::R1(G),XR(f)
- R(f);OGATE::B(L),XP(d)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- P(d);OGATEB::QAB(A)
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).