MESON Chess Problem Database
Problem Display
PID: 61168 (5q2/5P2/p1R3R1/4Q3/rk5r/p2p3p/2P2P1K/N1B1b3 w - - 0 1)
Thompson, Walter Hood
La Strategie, 1907
#2
9 + 9
| 136 | Problem Observer | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.Qxc5#
- 1...Qh6
- 2.Qc5#
- 1...Qg7
- 2.Qc5#
- 1...Qxf7
- 2.Qc5#
- 1...Qa8
- 2.Qc5#
- 1...Qc8
- 2.Qc5#
- 1...Qd8
- 2.Qc5#
- 1...Qe8
- 2.Qc5#
- 1...Qg8
- 2.Qc5#
- 1...Qh8
- 2.Qc5#
- 1...Rc4
- 2.Rb6#
- 1...Rg4
- 2.Rxg4#
- 1...Rh5
- 2.Rg4#
- 1...Rh6
- 2.Rg4#
- 1...Rh7
- 2.Rg4#
- 1...Rh8
- 2.Rg4#
- 1...Bd2
- 2.Bxd2#
- 1...Bxf2
- 2.Bd2#
- 2.c3#
- 1...d2
- 2.c3#
- 1...Qc5
- Tries
- 1.Rc4+?
- 1...Rxc4
- 2.Rb6#
- 1...Kxc4!
- 1...Rxc4
- 1.Qb2+?
- 1...Ka5
- 2.Rxa6#
- 2.Qb6#
- 1...axb2!
- 1...Ka5
- 1.Qc3+?
- 1...Kb5
- 2.Rb6#
- 1...Bxc3!
- 1...Kb5
- 1.Qd4+?
- 1...Ka5
- 2.Qb6#
- 1...Kb5
- 2.Qb6#
- 1...Rxd4!
- 1...Ka5
- 1.Qd6+?
- 1...Ka5
- 2.Rg5#
- 1...Kb5
- 2.Rg5#
- 1...Qxd6+!
- 1...Ka5
- 1.Qb8+?
- 1...Ka5
- 2.Sb3#
- 2.Rxa6#
- 2.Qb6#
- 1...Qxb8+!
- 1...Ka5
- 1.Rc4+?
- Keys
- 1.Rg5!
- 1...Qxf7
- 2.Qd6#
- 2.Qc5#
- 1...Bxf2
- 2.Bd2#
- 2.Qc3#
- 2.c3#
- 1...dxc2
- 2.Qxe1#
- 1...Qc5
- 2.Qxc5#
- 1...Ra5
- 2.Qxa5#
- 1...Qd6
- 2.Qxd6#
- 1...Qh6
- 2.Qb8#
- 2.Qc5#
- 1...Qe7
- 2.Qxe7#
- 1...Qg7
- 2.Qd6#
- 2.Qb8#
- 2.Qc5#
- 2.Qe7#
- 1...Qa8
- 2.Qd6#
- 2.Qc5#
- 2.Qe7#
- 1...Qb8
- 2.Qxb8#
- 1...Qc8
- 2.Qd6#
- 2.Qc5#
- 2.Qe7#
- 1...Qd8
- 2.Qc5#
- 1...Qe8
- 2.Qd6#
- 2.Qc5#
- 1...Qg8
- 2.Qd6#
- 2.Qc5#
- 2.Qe7#
- 1...Qh8
- 2.Qd6#
- 2.Qc5#
- 2.Qe7#
- 1...Rc4
- 2.Rb6#
- 1...Rd4
- 2.Qxd4#
- 1...Re4
- 2.Qxe4#
- 1...Rf4
- 2.Qxf4#
- 1...Rg4
- 2.Rxg4#
- 1...Rh5
- 2.Rg4#
- 2.Qd4#
- 2.Qf4#
- 2.Qe4#
- 1...Rh6
- 2.Rg4#
- 2.Qd4#
- 2.Qf4#
- 2.Qe4#
- 1...Rh7
- 2.Rg4#
- 2.Qd4#
- 2.Qf4#
- 2.Qe4#
- 1...Rh8
- 2.Rg4#
- 2.Qd4#
- 2.Qf4#
- 2.Qe4#
- 1...Bd2
- 2.Bxd2#
- 1...Bc3
- 2.Qxc3#
- 1...a2
- 2.Qb2#
- 1...d2
- 2.Qc3#
- 2.c3#
- 1...a5
- 2.Qb5#
- 1...Qxf7
- 1.Rg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 13
- Sets
- Q(i);N_GUARD::QAB1(F),XQ(i)
- Q(i);N_GUARD::QAB1(F)
- Q(i);N_GUARD,XP(I)::QAB1(F)
- R(g);SBLOCK::R(G)
- R(g);N_GUARD::R(H),XR(g)
- R(g);N_GUARD::R(H)
- B(a);N_GUARD::B(B),XB(a)
- P(c);S_CUTB(a)::P(C)
- Tries
- Try
- R(G);CHECK
- Vars
- R(g);SBLOCK,XR(G)::R(H)
- Refutation
- K(f);P-FLIGHT,XR(G)
- Try
- Q(F);CHECK
- Refutation
- P(b);XQ(F)
- Try
- Q(F);CHECK
- Vars
- K(f);P-FLIGHT::R1(G)
- Refutation
- B(a);XQ(F)
- Try
- Q(F);CHECK
- Vars
- K(f);S_FLIGHT::QAB1(F)
- K(f);P-FLIGHT::QAR1(F)
- Refutation
- R(g);XQ(F)
- Try
- Q(F);CHECK
- Vars
- K(f);S_FLIGHT::R(H)
- K(f);P-FLIGHT::R(H)
- Refutation
- Q(i);CHECK,XQ(F)
- Try
- Q(F);CHECK
- Refutation
- Q(i);CHECK,XQ(F)
- Try
- Actual
- R(H);
- Vars
- P(c);N_GUARD,XP(C)::QAB(F),XB(a)
- Q(i);N_GUARD::QAB1(F),XQ(i)
- R(e);N_GUARD::QAB1(F),XR(e)
- Q(i);N_GUARD,P_PINQ(F)::QAB(F),XQ(i)
- Q(i);N_GUARD::QAB(F),XQ(i)
- Q(i);N_GUARD,P_PINQ(F)::QAR(F),XQ(i)
- Q(i);N_GUARD::QAB1(F)
- R(g);SBLOCK::R(G)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::R(H),XR(g)
- B(a);N_GUARD::B(B),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- P(b);N_GUARD::QAR2(F)
- P(h);N_GUARD::QAR1(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).