MESON Chess Problem Database
Problem Display
PID: 79566 (4q3/1p2P1BB/8/4N1kp/3QK1pr/4N2p/1p5p/8 w - - 0 1)
Morse, Christopher Jeremy
The Tablet, 1966
(First published on Sat Jun 25 1966)
#2
7 + 9
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qa4
- 2.Sf7#
- 1...Qb5
- 2.Sf7#
- 1...Qd7
- 2.Sf7#
- 1...Qf7
- 2.Sxf7#
- 1...Qa8
- 2.Sf7#
- 1...Qb8
- 2.Sf7#
- 1...Qc8
- 2.Sf7#
- 1...Qd8
- 2.Sf7#
- 2.exd8Q#
- 2.exd8B#
- 1...Qh8
- 2.Sf7#
- 1...Qa4
- Tries
- 1.Bh6+?
- 1...Kf6
- 2.Qd6#
- 1...Kxh6!
- 1...Kf6
- 1.Qd2?
- threat
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.S3c4#
- 2.S3xg4#
- 2.Sd5#
- 2.Sf5#
- 1...Qa4+
- 2.S3c4#
- 1...Qc6+
- 2.Sd5#
- 1...Qg6+
- 2.Sf5#
- 1...b1Q+
- 2.Sc2#
- 1...b1B+
- 2.Sc2#
- 1...h1Q+
- 2.Sg2#
- 1...h1B+
- 2.Sg2#
- 1...g3+
- 2.S3g4#
- 1...Qd7
- 2.Sd5#
- 2.Sf7#
- 1...Qf7
- 2.Sf5#
- 2.Sxf7#
- 1...Qd8
- 2.Sd5#
- 2.Sf7#
- 2.exd8Q#
- 2.exd8B#
- 1...Qf8
- 2.Sf5#
- 1...b1S!
- threat
- 1.Qd5?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.S5c4#
- 2.S5xg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Qa4+
- 2.S5c4#
- 1...Qg6+
- 2.Sxg6#
- 1...b1Q+
- 2.Sd3#
- 1...b1B+
- 2.Sd3#
- 1...h1Q+
- 2.Sf3#
- 1...h1B+
- 2.Sf3#
- 1...g3+
- 2.S5g4#
- 1...Qb5
- 2.Sf3#
- 2.Sf7#
- 1...Qc6
- 2.Sf3#
- 2.Sxc6#
- 2.Sf7#
- 1...Qd7
- 2.Sf3#
- 2.Sxd7#
- 2.Sf7#
- 1...Qf7
- 2.Sf3#
- 2.Sxf7#
- 1...Qb8
- 2.Sf3#
- 2.Sf7#
- 1...Qc8
- 2.Sf3#
- 2.Sd7#
- 2.Sf7#
- 1...Qd8
- 2.Sf3#
- 2.Sd7#
- 2.Sf7#
- 2.exd8Q#
- 2.exd8B#
- 1...Qf8
- 2.Sf3#
- 2.Sf7#
- 1...Qg8
- 2.Sf3#
- 2.Sf7#
- 1...Qxe7!
- threat
- 1.Bh6+?
- Keys
- 1.Qc5!
- threat
- 2.Sd3#
- 2.Sf3#
- 2.S5c4#
- 2.S5xg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Qa4+
- 2.S5c4#
- 1...Qc6+
- 2.Sxc6#
- 1...Qg6+
- 2.Sxg6#
- 1...b1Q+
- 2.Sd3#
- 1...b1B+
- 2.Sd3#
- 1...h1Q+
- 2.Sf3#
- 1...h1B+
- 2.Sf3#
- 1...g3+
- 2.S5g4#
- 1...Qxe7
- 2.Qxe7#
- 1...Qb5
- 2.Sf3#
- 2.Sf7#
- 1...Qd7
- 2.Sf3#
- 2.Sxd7#
- 2.Sf7#
- 1...Qf7
- 2.Sf3#
- 2.Sxf7#
- 1...Qb8
- 2.Sf3#
- 2.Sf7#
- 1...Qc8
- 2.Sf3#
- 2.Sf7#
- 1...Qd8
- 2.Sf3#
- 2.Sd7#
- 2.Sf7#
- 2.exd8Q#
- 2.exd8B#
- 1...Qf8
- 2.Sf3#
- 2.Sf7#
- 1...Qg8
- 2.Sf3#
- 2.Sf7#
- 1...b6
- 2.Sf3#
- 2.Sf7#
- threat
- 1.Qc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 7
- Sets
- Q(i);N_GUARD,P_PINQ(B)::S(D)
- Q(i);N_GUARD::S(D)
- Q(i);N_GUARD::S(D),XQ(i)
- Tries
- Try
- B(F);CHECK
- Vars
- K(f);S_FLIGHT::QAR2(B)
- Refutation
- K(f);S_FLIGHT,XB(F)
- Try
- Q(B);
- Threat
- DUALS(8)
- Vars
- Q(i);CHECK::QAB(B)+S(A)
- P(a);CHECK::QAB(B)+S(A)
- P(b);CHECK::QAB(B)+S(A)
- P(d);CHECK::QAB(B)+S(A)
- Q(i);::QAB(B)+S(A)
- Refutation
- P(a);
- Try
- Q(B);
- Threat
- DUALS(8)
- Vars
- Q(i);CHECK::QAR(B)+S(D)
- Q(i);CHECK::QAR(B)+S(D),XQ(i)
- P(a);CHECK::QAR(B)+S(D)
- P(b);CHECK::QAR(B)+S(D),DCHECK
- P(d);CHECK::QAR(B)+S(D)
- Refutation
- Q(i);P_PINS(D),XP(E)
- Try
- Actual
- Q(B);
- Threat
- DUALS(8)
- Vars
- Q(i);CHECK::QAR(B)+S(D)
- Q(i);CHECK::QAR(B)+S(D),XQ(i)
- P(a);CHECK::QAR(B)+S(D)
- P(b);CHECK::QAR(B)+S(D),DCHECK
- P(d);CHECK::QAR(B)+S(D)
- Q(i);OGATE,P_PINS(D),XP(E)::QAB(B),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).