MESON Chess Problem Database
Problem Display
PID: 9466 (2N5/4p1B1/4P1n1/1p1k3K/2R1Rp2/b2N1p2/3p1P2/3Q1B2 w - - 0 1)
Brock, David Thurston
2nd Prize, The Literary Digest, 1903
#2
10 + 8
| 5064 | 100 Years of the American Two-move Chess Problem | 1962 |
| 3639 | Hastings Solving Ty. | 1994-1995 |
| 5424 | Versunkene Schatze | 1998 |
| 268 | Chess Life | 2004 |
| 14868 | Pirnie Collection | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Bd6
- 2.Sb6#
- 1...Sh4
- 2.Sxf4#
- 1...Se5
- 2.Sxf4#
- 1...Sf8
- 2.Sxf4#
- 1...Sh8
- 2.Sxf4#
- 1...Bc1
- Tries
- 1.Re3?
- 1...Kxc4
- 2.Sb6#
- 1...bxc4
- 2.Qxf3#
- 1...Bc5
- 2.Rxc5#
- 1...Se5
- 2.Sxf4#
- 1...Bc1
- 2.Sb4#
- 2.Rc5#
- 1...Bb2
- 2.Sb4#
- 2.Rc5#
- 1...Bb4
- 2.Sxb4#
- 1...Bd6
- 2.Sb6#
- 1...Sh4
- 2.Sxf4#
- 1...Sf8
- 2.Sxf4#
- 1...Sh8
- 2.Sxf4#
- 1...b4
- 2.Rc5#
- 1...fxe3!
- 1...Kxc4
- 1.Re5+?
- 1...Sxe5
- 2.Sxf4#
- 1...Kxc4!
- 1...Sxe5
- 1.Qc2?
- threat
- 2.Rcd4#
- 1...bxc4
- 2.Qxc4#
- 1...Se5
- 2.Sxf4#
- 2.Rxe5#
- 1...Bb2
- 2.Sb4#
- 1...Bc5!
- threat
- 1.Qa4?
- threat
- 2.Qa8#
- 1...Se5
- 2.Sxf4#
- 2.Rxe5#
- 1...bxa4!
- threat
- 1.Qa1?
- threat
- 2.Qd4#
- 1...Bc5
- 2.Qa8#
- 1...Se5
- 2.Sxf4#
- 2.Qxe5#
- 1...Bb2
- 2.Sb4#
- 2.Qa8#
- 1...bxc4!
- threat
- 1.Qxd2?
- threat
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sb4#
- 2.Sxf4#
- 1...Bc5
- 2.Sb4#
- 1...Se5
- 2.Sxf4#
- 1...Bc1
- 2.Sxc1#
- 2.Sb4#
- 2.Sxf4#
- 1...Bb2
- 2.Sxb2#
- 2.Sb4#
- 2.Sxf4#
- 1...Bb4
- 2.Sxb4#
- 2.Sxf4#
- 1...b4
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxb4#
- 2.Sxf4#
- 1...bxc4!
- threat
- 1.Re3?
- Keys
- 1.Re1!
- 1...Kxc4
- 2.Sb6#
- 1...dxe1Q
- 2.Sxf4#
- 1...dxe1S
- 2.Sxf4#
- 1...dxe1B
- 2.Sxf4#
- 1...dxe1R
- 2.Sxf4#
- 1...bxc4
- 2.Qxf3#
- 1...Bc5
- 2.Rxc5#
- 1...Se5
- 2.Sxf4#
- 1...Bc1
- 2.Sb4#
- 2.Rc5#
- 1...Bb2
- 2.Sb4#
- 2.Rc5#
- 1...Bb4
- 2.Sxb4#
- 1...Bd6
- 2.Sb6#
- 1...Sh4
- 2.Sxf4#
- 1...Sf8
- 2.Sxf4#
- 1...Sh8
- 2.Sxf4#
- 1...b4
- 2.Rc5#
- 1...Kxc4
- 1.Re1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 2
- Sets
- B(b);N_GUARD::S(D)
- B(b);N_GUARD::S(D),XB(b)
- B(b);SBLOCK::S(J)
- S(g);N_GUARD::S(D),XP(d)
- Tries
- Try
- R(F);
- Vars
- K(f);S_FLIGHT,XR(E)::S(J)
- P(e);SBLOCK,XR(E)::QAB(A),XP(c)
- B(b);N_GUARD::R1(E),XB(b)
- S(g);N_GUARD::S(D),XP(d)
- B(b);N_GUARD::S(D),XB(b)
- B(b);SBLOCK::S(J)
- P(e);S_CUTB(b)::R1(E)
- Refutation
- P(d);XR(F)
- Try
- R(F);CHECK
- Vars
- S(g);XR(F)::S(D),XP(d)
- Refutation
- K(f);S_FLIGHT,XR(E)
- Try
- Q(A);
- Threat
- R1(E)
- Vars
- P(e);OGATE,XR(E)::QAB1(A),XP(e)
- B(b);N_GUARD::S(D)
- Refutation
- B(b);
- Try
- Q(A);
- Threat
- QAB(A)
- Refutation
- P(e);XQ(A)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- B(b);OGATE::QAB(A)
- Refutation
- P(e);XR(E)
- Try
- Q(A);XP(a)
- Threat
- DUALS(5)
- Vars
- B(b);::QAR(A)+S(D),DCHECK
- S(g);::QAR(A)+S(D),DCHECK,XP(d)
- Refutation
- P(e);XR(E)
- Try
- Actual
- R(F);
- Vars
- K(f);S_FLIGHT,XR(E)::S(J)
- P(a);XR(F)::QAR(A)+S(D),DCHECK,XP(d)
- P(e);SBLOCK,XR(E)::QAB(A),XP(c)
- B(b);N_GUARD::R1(E),XB(b)
- S(g);N_GUARD::S(D),XP(d)
- B(b);N_GUARD::S(D),XB(b)
- B(b);SBLOCK::S(J)
- P(e);S_CUTB(b)::R1(E)
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).