MESON Chess Problem Database
Problem Display
PID: 183199 (4r3/1b1Q2bq/pN3P2/7p/r2pk3/p3PNP1/4K3/8 w - - 0 1)
Marble, Murray
American Chess Bulletin, 1907
#2
7 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Sd2#
- 1...Re6
- 2.Qxe6#
- 1...Ra8
- 2.Qe6#
- 1...Rb8
- 2.Qe6#
- 1...Rc8
- 2.Qe6#
- 1...Rd8
- 2.Qe6#
- 1...Rf8
- 2.Qe6#
- 1...Rg8
- 2.Qe6#
- 1...Rh8
- 2.Qe6#
- 1...Bd5
- 2.Qxd5#
- 1...Bc8
- 2.Qd5#
- 1...Bxf6
- 2.Qxh7#
- 1...Bh6
- 2.Qxh7#
- 1...Bf8
- 2.Qxh7#
- 1...Bh8
- 2.Qxh7#
- 1...dxe3
- 2.Qd3#
- 1...d3+
- 2.Qxd3#
- 1...h4
- 2.Qg4#
- 1...Re5
- Tries
- 1.Sxa4?
- threat
- 2.Sc5#
- 1...d3+
- 2.Qxd3#
- 1...Re6
- 2.Qxe6#
- 1...Qf5
- 2.Qxd4#
- 1...Re5
- 2.Sd2#
- 1...Rc8
- 2.Qe6#
- 1...Bf8!
- threat
- 1.Sc4?
- threat
- 2.Sfd2#
- 2.Sg5#
- 2.Scd2#
- 1...d3+
- 2.Qxd3#
- 1...Bxf6
- 2.Sfd2#
- 2.Scd2#
- 1...dxe3
- 2.Sg5#
- 2.Qd3#
- 1...Re6
- 2.Qxe6#
- 1...Qf5
- 2.Sfd2#
- 2.Scd2#
- 2.Qxd4#
- 1...Qg6
- 2.Sfd2#
- 2.Scd2#
- 1...Qh6
- 2.Sfd2#
- 2.Scd2#
- 1...Ra5
- 2.Sfd2#
- 2.Scd2#
- 1...Re5
- 2.Sfd2#
- 2.Scd2#
- 1...Bh6
- 2.Sfd2#
- 2.Scd2#
- 1...Rxc4!
- threat
- 1.Qb5?
- threat
- 2.Sd2#
- 2.Sg5#
- 2.Qd3#
- 1...d3+
- 2.Qxd3#
- 1...Bxf6
- 2.Sd2#
- 2.Qd3#
- 1...dxe3
- 2.Qd3#
- 2.Qb1#
- 1...Re5
- 2.Qd3#
- 2.Qxe5#
- 1...Bd5
- 2.Qd3#
- 2.Qxd5#
- 1...Qf5
- 2.Sd2#
- 2.Qd3#
- 1...Qg6
- 2.Sd2#
- 2.Qd3#
- 1...Qh6
- 2.Sd2#
- 2.Qd3#
- 1...Rc4
- 2.Sd2#
- 2.Sg5#
- 1...Bh6
- 2.Sd2#
- 2.Qd3#
- 1...axb5!
- threat
- 1.Sxa4?
- Keys
- 1.g4!
- threat
- 2.Qxe8#
- 2.Qxb7#
- 1...d3+
- 2.Qxd3#
- 1...Bxf6
- 2.Qxh7#
- 1...dxe3
- 2.Qxa4#
- 1...hxg4
- 2.Qxg4#
- 1...Qf5
- 2.Qxf5#
- 1...Qg6
- 2.Qxb7#
- 1...Qg8
- 2.Qf5#
- 1...Qh8
- 2.Qf5#
- 2.Qxb7#
- 1...Rc4
- 2.Qxe8#
- 1...Ra5
- 2.Qxd4#
- 1...Re5
- 2.Sd2#
- 1...Re6
- 2.Qxe6#
- 1...Re7
- 2.Qxe7#
- 1...Ra8
- 2.Qe6#
- 2.Qxb7#
- 2.Qe7#
- 1...Rb8
- 2.Qe6#
- 2.Qe7#
- 1...Rc8
- 2.Qe6#
- 2.Qe7#
- 1...Rd8
- 2.Qe6#
- 2.Qe7#
- 1...Rf8
- 2.Qe6#
- 2.Qxb7#
- 2.Qe7#
- 1...Rg8
- 2.Qe6#
- 2.Qxb7#
- 2.Qe7#
- 1...Rh8
- 2.Qe6#
- 2.Qxb7#
- 2.Qe7#
- 1...Bd5
- 2.Qxd5#
- 1...Bc6
- 2.Qxc6#
- 1...Ba8
- 2.Qxe8#
- 1...Bc8
- 2.Qc6#
- 2.Qd5#
- 1...Bh6
- 2.Qxh7#
- 1...Bf8
- 2.Qxh7#
- 1...Bh8
- 2.Qxh7#
- threat
- 1.g4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 9
- Sets
- R(j);SBLOCK::S(C)
- R(j);N_GUARD::QAR2(G),XR(j)
- R(j);N_GUARD::QAR2(G)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(g);N_GUARD::QAB1(G)
- B(h);OGATE,XP(F)::QAB(G),XQ(i)
- B(h);OGATE::QAB(G),XQ(i)
- P(c);OGATE,XP(B)::QAB1(G)
- P(c);CHECK,OGATE::QAB1(G),XP(c)
- P(e);N_GUARD::QAR2(G)
- Tries
- Try
- S(E);XR(b)
- Threat
- S(E)
- Vars
- P(c);CHECK,OGATE::QAB1(G),XP(c)
- R(j);N_GUARD::QAR2(G),XR(j)
- Q(i);SBLOCK::QAR1(G),XP(c)
- R(j);SBLOCK::S(C)
- R(j);N_GUARD::QAR2(G)
- Refutation
- B(h);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(c);CHECK,OGATE::QAB1(G),XP(c)
- R(j);N_GUARD::QAR2(G),XR(j)
- Refutation
- R(b);XS(E)
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- P(c);CHECK::QAB1(G),XP(c)
- Refutation
- P(f);XQ(G)
- Try
- Actual
- P(D);
- Threat
- DUALS(2)
- Vars
- P(c);CHECK,OGATE::QAB1(G),XP(c)
- B(h);OGATE,XP(F)::QAB(G),XQ(i)
- P(c);OGATEB,XP(B)::QAR(G),XR(b)
- P(e);OGATE,XP(D)::QAR2(G),XP(e)
- Q(i);N_GUARD::QAB1(G),XQ(i)
- Q(i);::QAB(G),XB(g)
- Q(i);N_GUARD::QAB1(G)
- R(b);::QAR(G),XR(j)
- R(b);N_GUARD::QAR1(G),XP(c)
- R(j);SBLOCK::S(C)
- R(j);N_GUARD::QAR2(G),XR(j)
- R(j);N_GUARD::QAR(G),XR(j)
- B(g);N_GUARD::QAB1(G),XB(g)
- B(g);N_GUARD::QAB(G),XB(g)
- B(g);::QAR(G),XR(j)
- B(h);OGATE::QAB(G),XQ(i)
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).