MESON Chess Problem Database
Problem Display
PID: 162398 (2bQKb1n/1R2B3/2r1k1pp/2R4N/1P6/1qpp2pn/8/1B2r3 w - - 0 1)
Carpenter, George Edward
Detroit Free Press, 1880
#2
8 + 13
| 81 | Chess | 1956 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Qd5#
- 1...Qa2
- 2.Bxa2#
- 1...Qc2
- 2.Qd5#
- 1...Qa4
- 2.Qd5#
- 1...Qd5
- 2.Qxd5#
- 1...Qxb1
- 2.Qd5#
- 1...Qb2
- 2.Qd5#
- 1...Qa3
- 2.Qd5#
- 1...Qxb4
- 2.Qd5#
- 1...Ra6
- 2.Qxc8#
- 1...Rb6
- 2.Rxb6#
- 2.Qxb6#
- 2.Qxc8#
- 1...Rd6
- 2.Qxd6#
- 1...Rc7
- 2.Qd6#
- 1...Bxb7
- 2.Qd7#
- 1...Bd7+
- 2.Qxd7#
- 1...Bxe7
- 2.Rxe7#
- 2.Qxe7#
- 1...Bg7
- 2.Sxg7#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Qd1
- Tries
- 1.Bxf8?
- threat
- 2.Sg7#
- 2.Re7#
- 2.Qf6#
- 2.Qe7#
- 1...Bd7+
- 2.Qxd7#
- 1...Bxb7
- 2.Sg7#
- 2.Qf6#
- 2.Qe7#
- 2.Qd7#
- 1...gxh5
- 2.Qe7#
- 1...Qd5
- 2.Qf6#
- 2.Qxd5#
- 1...Re5
- 2.Sg7#
- 2.Qf6#
- 1...Rf1
- 2.Sg7#
- 2.Re7#
- 2.Qe7#
- 1...Rc7
- 2.Qf6#
- 2.Qd6#
- 1...Rxc5!
- threat
- 1.Rc7?
- threat
- 2.R7xc6#
- 2.Qxc8#
- 1...Bd7+
- 2.Qxd7#
- 1...Rxc7
- 2.Qd6#
- 1...Bxe7
- 2.Rxe7#
- 2.Qxe7#
- 1...Qd5
- 2.Qxd5#
- 1...Re5
- 2.Qxc8#
- 1...Qa4
- 2.Qd5#
- 2.Qxc8#
- 1...Ra6
- 2.Qxc8#
- 1...Rb6
- 2.Qxc8#
- 1...Rd6
- 2.Qxd6#
- 1...Ba6
- 2.R7xc6#
- 2.Qd7#
- 1...Bb7
- 2.Qd7#
- 1...Sf7
- 2.Qxc8#
- 1...Rxc5!
- threat
- 1.Qxd3?
- 1...Bd7+
- 2.Qxd7#
- 1...Qxb1
- 2.Qc4#
- 2.Qd5#
- 1...Qxb4
- 2.Qd5#
- 1...Rxb1
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Rxc5
- 2.Qd6#
- 1...Bxb7
- 2.Qd7#
- 1...Bxe7
- 2.Rxe7#
- 1...gxh5
- 2.Qf5#
- 1...Qd5
- 2.Qxd5#
- 1...Qc4
- 2.Qxc4#
- 1...Qa2
- 2.Bxa2#
- 1...Qc2
- 2.Qc4#
- 2.Qd5#
- 1...Qa4
- 2.Qc4#
- 2.Qd5#
- 1...Qb2
- 2.Qc4#
- 2.Qd5#
- 1...Qa3
- 2.Qc4#
- 2.Qd5#
- 1...Rc1
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Rd1
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Rf1
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Rg1
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Rh1
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Re2
- 2.Qxe2#
- 1...Re3
- 2.Qxe3#
- 1...Re4
- 2.Qxe4#
- 1...Re5
- 2.Rxc6#
- 1...Ra6
- 2.Qxa6#
- 1...Rb6
- 2.Rxb6#
- 1...Rd6
- 2.Qxd6#
- 1...Rc7
- 2.Qd6#
- 1...Bg7
- 2.Sxg7#
- 1...Sg1
- 2.Sf4#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Sf7
- 2.Qxg6#
- 1...c2
- 2.Qxb3#
- 1...g2
- 2.Qxh3#
- 1...g5
- 2.Qf5#
- 1...Qd1!
- 1...Bd7+
- 1.Qd4?
- threat
- 2.Qf6#
- 2.Qg4#
- 1...Bd7+
- 2.Qxd7#
- 1...Qxb4
- 2.Qf6#
- 2.Qd5#
- 1...Bxe7
- 2.Sg7#
- 2.Rxe7#
- 1...gxh5
- 2.Qf6#
- 1...Qd5
- 2.Qf6#
- 2.Qxd5#
- 1...Re5
- 2.Rxe5#
- 2.Qxe5#
- 1...Qc4
- 2.Qf6#
- 2.Qxc4#
- 1...Qd1
- 2.Qf6#
- 2.Qc4#
- 2.Qd5#
- 1...Rf1
- 2.Re5#
- 2.Qe3#
- 2.Qe5#
- 2.Qe4#
- 1...Re4
- 2.Qf6#
- 2.Qxe4#
- 1...Bg7
- 2.Sxg7#
- 2.Qg4#
- 1...Sf2
- 2.Sf4#
- 2.Qf6#
- 1...Sf4
- 2.Sxf4#
- 2.Qf6#
- 1...Rxc5!
- threat
- 1.Bxf8?
- Keys
- 1.Rb6!
- threat
- 2.Rbxc6#
- 2.Qxc8#
- 1...Bd7+
- 2.Qxd7#
- 1...Rxb6
- 2.Qxb6#
- 2.Qxc8#
- 1...Bxe7
- 2.Qxe7#
- 1...Qd5
- 2.Qxd5#
- 1...Re5
- 2.Qxc8#
- 1...Qa4
- 2.Qd5#
- 2.Qxc8#
- 1...Rd6
- 2.Rxd6#
- 2.Qxd6#
- 2.Qxc8#
- 1...Ba6
- 2.Rbxc6#
- 2.Qd7#
- 1...Bb7
- 2.Qd7#
- 1...Sf7
- 2.Qxc8#
- threat
- 1.Rb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 16
- Sets
- Q(b);N_GUARD::QAB1(G)
- Q(b);OGATEB::B(A),XQ(b)
- Q(b);N_GUARD::QAB1(G),XQ(b)
- Q(b);N_GUARD,XB(A)::QAB1(G)
- Q(b);N_GUARD,XP(B)::QAB1(G)
- R(g);N_GUARD::QAB(G),XB(k)
- R(g);N_GUARD::QAR1(G),XR(g)
- R(g);N_GUARD::QAR1(G)
- B(k);N_GUARD,XR(E)::QAB1(G)
- B(k);CHECK,N_GUARD::QAB1(G),XB(k)
- B(l);N_GUARD::S(D),XB(l)
- S(f);N_GUARD::S(D)
- S(f);N_GUARD::S(D),XS(f)
- Tries
- Try
- B(F);XB(l)
- Threat
- DUALS(4)
- Vars
- B(k);CHECK,N_GUARD::QAB1(G),XB(k)
- P(i);XS(D)::QAR1(G)
- Refutation
- R(g);XR(C)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- B(k);CHECK,N_GUARD::QAB1(G),XB(k)
- R(g);N_GUARD,XR(E)::QAR1(G)
- Q(b);N_GUARD::QAB1(G),XQ(b)
- R(a);::QAB(G),XB(k)
- R(g);::QAB(G),XB(k)
- R(g);N_GUARD::QAR1(G),XR(g)
- B(k);N_GUARD::QAB1(G)
- S(m);::QAB(G),XB(k)
- Refutation
- R(g);XR(C)
- Try
- Q(G);XP(d)
- Vars
- B(k);CHECK,N_GUARD::QAB1(G),XB(k)
- Q(b);N_GUARD,XP(B)::QAB1(G)
- R(g);N_GUARD,XR(C)::QAR1(G)
- B(k);N_GUARD,XR(E)::QAB1(G)
- B(l);OGATE,XB(F)::R1(E),XB(l)
- P(i);N_GUARD,XS(D)::QAB1(G)
- Q(b);N_GUARD::QAB1(G),XQ(b)
- Q(b);N_GUARD::QAB(G),XQ(b)
- Q(b);OGATEB::B(A),XQ(b)
- R(a);N_GUARD::QAR(G),XR(a)
- R(a);N_GUARD::QAR2(G),XR(a)
- R(a);SBLOCK::R(C),XR(g)
- R(g);OGATEB::QAR(G),XR(g)
- R(g);OGATEB::R(E),XR(g)
- R(g);N_GUARD::QAR1(G),XR(g)
- R(g);N_GUARD::QAR1(G)
- B(l);N_GUARD::S(D),XB(l)
- S(f);N_GUARD::S(D)
- S(f);N_GUARD::S(D),XS(f)
- S(m);N_GUARD::QAR2(G),XP(i)
- P(c);OGATE::QAB(G),XQ(b)
- P(e);OGATE::QAB(G),XS(f)
- P(i);N_GUARD::QAB1(G)
- Refutation
- Q(b);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(k);CHECK,N_GUARD::QAB1(G),XB(k)
- P(i);XS(D)::QAR1(G)
- Refutation
- R(g);XR(C)
- Try
- Actual
- R(E);P_PINR(g)
- Threat
- DUALS(2)
- Vars
- B(k);CHECK,N_GUARD::QAB1(G),XB(k)
- B(l);OGATE,XB(F)::QAR1(G),XB(l)
- Q(b);N_GUARD::QAB1(G),XQ(b)
- R(a);::QAB(G),XB(k)
- B(k);N_GUARD::QAB1(G)
- S(m);::QAB(G),XB(k)
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).