MESON Chess Problem Database
Problem Display
PID: 792 (6K1/6pp/7q/2R2B2/pN1BP1P1/Pk1P4/NP6/8 w - - 0 1)
Macleod, Norman Alasdair
British Chess Magazine, 1962
#2
11 + 5
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 6455 | The Chessboard Adventures of Norman Macleod | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sxc1#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh1
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qc6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qe6+
- 2.Bxe6#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qc1
- Tries
- 1.Kh8?
- 1...Qc1
- 2.Sxc1#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh1
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qc6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qe6
- 2.Sc1#
- 2.Bxe6#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qg5!
- 1...Qc1
- 1.Bc3?
- 1...Qe6+
- 2.Bxe6#
- 1...Qc1
- 2.Sxc1#
- 2.Be6#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh1
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qc6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qg5!
- 1...Qe6+
- 1.Bd7?
- 1...Qe6+
- 2.Bxe6#
- 1...Qc1
- 2.Sxc1#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh1
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qc6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qg5!
- 1...Qe6+
- 1.Bc8?
- 1...Qe6+
- 2.Bxe6#
- 1...Qc1
- 2.Sxc1#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh1
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qc6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qg5!
- 1...Qe6+
- 1.Rc2?
- 1...Qe6+
- 2.Bxe6#
- 1...Qc1
- 2.Sxc1#
- 2.Be6#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh1
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qc6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qg5!
- 1...Qe6+
- 1.Re5?
- 1...Qe6+
- 2.Bxe6#
- 1...Qg5
- 2.Be6#
- 1...Qc1
- 2.Sxc1#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh1
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 2.Be6#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qc6!
- 1...Qe6+
- 1.e5?
- 1...Qe6+
- 2.Bxe6#
- 1...Qg5
- 2.Be6#
- 1...Qc1
- 2.Sxc1#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 2.Be6#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qc6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qh1!
- 1...Qe6+
- 1.g5?
- threat
- 2.Sc1#
- 1...Qe6+
- 2.Bxe6#
- 1...Qh1
- 2.Be6#
- 1...Qxg5!
- threat
- 1.Kh8?
- Keys
- 1.Be5!
- 1...Qe6+
- 2.Bxe6#
- 1...Qg5
- 2.Be6#
- 1...Qc1
- 2.Sxc1#
- 1...Qd2
- 2.Be6#
- 1...Qe3
- 2.Be6#
- 1...Qf4
- 2.Be6#
- 1...Qh1
- 2.Be6#
- 1...Qh2
- 2.Sc1#
- 2.Be6#
- 1...Qh3
- 2.Sc1#
- 2.Be6#
- 1...Qh4
- 2.Sc1#
- 2.Be6#
- 1...Qh5
- 2.Sc1#
- 2.Be6#
- 1...Qa6
- 2.Sc1#
- 1...Qb6
- 2.Sc1#
- 1...Qc6
- 2.Sc1#
- 1...Qd6
- 2.Sc1#
- 1...Qf6
- 2.Sc1#
- 1...Qg6
- 2.Sc1#
- 1...g5
- 2.Sc1#
- 1...g6
- 2.Be6#
- 1...Qe6+
- 1.Be5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(c);N_GUARD::S(A),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A)
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
- Tries
- Try
- K(K);P-FLIGHT
- Vars
- Q(c);N_GUARD::S(A),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
- Refutation
- Q(c);
- Try
- B(F);
- Vars
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
- Refutation
- Q(c);
- Try
- B(J);
- Vars
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::S(A),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
- Refutation
- Q(c);
- Try
- B(J);
- Vars
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::S(A),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
- Refutation
- Q(c);
- Try
- R(I);
- Vars
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
- Refutation
- Q(c);
- Try
- R(I);
- Vars
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A),XQ(c)
- Q(c);N_GUARD::S(A)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
- Refutation
- Q(c);
- Try
- P(G);
- Vars
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A),XQ(c)
- Q(c);N_GUARD::S(A)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
- Refutation
- Q(c);
- Try
- P(H);
- Threat
- S(A)
- Vars
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::B(J)
- Refutation
- Q(c);XP(H)
- Try
- Actual
- B(F);
- Vars
- Q(c);CHECK,N_GUARD::B(J),XQ(c)
- Q(c);N_GUARD::B(J)
- Q(c);N_GUARD::S(A),XQ(c)
- Q(c);N_GUARD::S(A)
- P(d);S_CUTQ(c)::S(A)
- P(d);S_CUTQ(c)::B(J)
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).