MESON Chess Problem Database
Problem Display
PID: 149758 (8/8/4p3/4B1n1/6K1/6Q1/8/6bk w - - 0 1)
Dawson, Thomas Rayner
Pittsburgh Sun, 1922
(First published on Sat Sep 2 1922)
#2
3 + 4
| 15256 | TRD Scrapbook | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Bf2
- 2.Qh2#
- 1...Bh2
- 2.Qxh2#
- 1...Be3
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Se4
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...Bf2
- Tries
- 1.Kh4?
- 1...Sf3+
- 2.Qxf3#
- 1...Bh2
- 2.Qxh2#
- 1...Be3
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Sh3
- 2.Qf3#
- 1...Se4
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...Bf2!
- 1...Sf3+
- 1.Kxg5?
- threat
- 2.Qf3#
- 1...Bf2
- 2.Qh2#
- 1...Bh2
- 2.Qxh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Be3+!
- threat
- 1.Bf4?
- 1...Bf2
- 2.Qh2#
- 1...Bh2
- 2.Qxh2#
- 1...Be3
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Se4
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...e5!
- 1...Bf2
- 1.Bd6?
- 1...Bf2
- 2.Qh2#
- 1...Bh2
- 2.Qxh2#
- 1...Be3
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Se4
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...e5!
- 1...Bf2
- 1.Bc7?
- 1...Bf2
- 2.Qh2#
- 1...Bh2
- 2.Qxh2#
- 1...Be3
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Se4
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...e5!
- 1...Bf2
- 1.Bb8?
- 1...Bf2
- 2.Qh2#
- 1...Bh2
- 2.Qxh2#
- 1...Be3
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Se4
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...e5!
- 1...Bf2
- 1.Qf2?
- 1...Bh2
- 2.Qxh2#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Se4
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...Bxf2!
- 1...Bh2
- 1.Qf4?
- 1...Bf2
- 2.Qh2#
- 1...Bh2
- 2.Qxh2#
- 1...Be3
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 2.Qe4#
- 1...Se4
- 2.Qf3#
- 2.Qxe4#
- 1...Sf7
- 2.Qf3#
- 2.Qe4#
- 1...Sh7
- 2.Qf3#
- 2.Qe4#
- 1...Kg2!
- 1...Bf2
- 1.Qh3+?
- 1...Bh2
- 2.Qxh2#
- 1...Sxh3!
- 1...Bh2
- 1.Kh4?
- Keys
- 1.Kh5!
- 1...Bf2
- 2.Qh2#
- 1...Bh2
- 2.Qxh2#
- 1...Be3
- 2.Qh2#
- 1...Bd4
- 2.Qh2#
- 1...Bc5
- 2.Qh2#
- 1...Bb6
- 2.Qh2#
- 1...Ba7
- 2.Qh2#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Se4
- 2.Qf3#
- 1...Sf7
- 2.Qf3#
- 1...Sh7
- 2.Qf3#
- 1...Bf2
- 1.Kh5!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAB(A),XS(c)
- S(c);N_GUARD::QAB(A)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- S(c);CHECK,N_GUARD::QAB(A),XS(c)
- B(a);N_GUARD::QAR1(A),XB(a)
- B(a);N_GUARD::QAR1(A)
- S(c);N_GUARD::QAB(A)
- Refutation
- B(a);P_PINQ(A)
- Try
- K(B);P-FLIGHT,XS(c)
- Threat
- QAB(A)
- Vars
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- Refutation
- B(a);CHECK
- Try
- B(C);
- Vars
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAB(A),XS(c)
- S(c);N_GUARD::QAB(A)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAB(A),XS(c)
- S(c);N_GUARD::QAB(A)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAB(A),XS(c)
- S(c);N_GUARD::QAB(A)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAB(A),XS(c)
- S(c);N_GUARD::QAB(A)
- Refutation
- P(d);
- Try
- Q(A);
- Vars
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAB(A),XS(c)
- S(c);N_GUARD::QAB(A)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);
- Vars
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAB(A),XS(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR1(A),XB(a)
- Refutation
- S(c);XQ(A)
- Try
- Actual
- K(B);S_FLIGHT
- Vars
- B(a);N_GUARD::QAR1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- S(c);N_GUARD::QAB(A),XS(c)
- S(c);N_GUARD::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).