MESON Chess Problem Database
Problem Display
PID: 217744 (8/1K2B3/8/2P5/Q2N4/4N1kp/5R2/6b1 w - - 0 1)
Mackenzie, Arthur Ford
Deutsche Schachzeitung, 1884
#2
7 + 3
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Rf3#
- 1...h2
- 2.Rf3#
- 1...Bh2
- Tries
- 1.Sf1+?
- 1...Kg4
- 2.Qd1#
- 1...Kxf2!
- 1...Kg4
- 1.Sef5+?
- 1...Kg4
- 2.Qd1#
- 1...Kxf2!
- 1...Kg4
- 1.Sf3?
- threat
- 2.Bh4#
- 2.Qh4#
- 1...Bxf2
- 2.Qg4#
- 1...h2
- 2.Qh4#
- 1...Kxf2!
- threat
- 1.Se6?
- threat
- 2.Bh4#
- 2.Qf4#
- 2.Qh4#
- 1...Bxf2
- 2.Qf4#
- 1...h2
- 2.Qh4#
- 1...Kxf2!
- threat
- 1.Qc2?
- threat
- 2.Sdf5#
- 2.Rf3#
- 1...h2
- 2.Rf3#
- 1...Bxf2!
- threat
- 1.Qb3?
- 1...Kxf2
- 2.Bh4#
- 1...h2
- 2.Rf3#
- 1...Bh2
- 2.Rf3#
- 1...Bxf2!
- 1...Kxf2
- 1.Qc6?
- threat
- 2.Qf3#
- 1...Bxf2
- 2.Qd6#
- 2.Qc7#
- 1...Kxf2!
- threat
- 1.Qd7?
- 1...Bxf2
- 2.Qd6#
- 2.Qc7#
- 1...Bh2
- 2.Rf3#
- 1...h2
- 2.Rf3#
- 1...Kxf2!
- 1...Bxf2
- 1.Qa2?
- threat
- 2.Sdf5#
- 2.Rf3#
- 1...h2
- 2.Rf3#
- 1...Bxf2!
- threat
- 1.Qa3?
- 1...Kxf2
- 2.Bh4#
- 1...h2
- 2.Rf3#
- 1...Bh2
- 2.Rf3#
- 1...Bxf2!
- 1...Kxf2
- 1.Qa5?
- 1...Bxf2
- 2.Qc7#
- 1...h2
- 2.Rf3#
- 1...Bh2
- 2.Rf3#
- 1...Kxf2!
- 1...Bxf2
- 1.Qa6?
- 1...Bxf2
- 2.Qd6#
- 1...h2
- 2.Rf3#
- 1...Bh2
- 2.Rf3#
- 1...Kxf2!
- 1...Bxf2
- 1.Qa7?
- 1...Bxf2
- 2.Qb8#
- 1...h2
- 2.Rf3#
- 1...Bh2
- 2.Rf3#
- 1...Kxf2!
- 1...Bxf2
- 1.Qa8?
- 1...Bxf2
- 2.Qb8#
- 1...h2
- 2.Rf3#
- 1...Bh2
- 2.Rf3#
- 1...Kxf2!
- 1...Bxf2
- 1.Sf1+?
- Keys
- 1.Qe8!
- 1...Kxf2
- 2.Bh4#
- 1...Bxf2
- 2.Qb8#
- 1...h2
- 2.Rf3#
- 1...Bh2
- 2.Rf3#
- 1...Kxf2
- 1.Qe8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(a);SBLOCK::R1(A)
- P(c);SBLOCK::R1(A)
- Tries
- Try
- S(B);CHECK
- Vars
- K(b);P-FLIGHT::QAB(C)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- S(B);CHECK
- Vars
- K(b);P-FLIGHT::QAB(C)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(a);SBLOCK,XR(A)::QAR1(C)
- P(c);::QAB1(C)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- B(a);XR(A)::QAB1(C)
- P(c);::QAB1(C)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(c);::R1(A)
- Refutation
- B(a);XR(A)
- Try
- Q(C);
- Vars
- K(b);S_FLIGHT,XR(A)::B(G)
- P(c);SBLOCK::R1(A)
- B(a);SBLOCK::R1(A)
- Refutation
- B(a);XR(A)
- Try
- Q(C);
- Threat
- QAR1(C)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- Q(C);
- Vars
- B(a);SBLOCK::R1(A)
- P(c);SBLOCK::R1(A)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(c);::R1(A)
- Refutation
- B(a);XR(A)
- Try
- Q(C);
- Vars
- K(b);S_FLIGHT,XR(A)::B(G)
- P(c);SBLOCK::R1(A)
- B(a);SBLOCK::R1(A)
- Refutation
- B(a);XR(A)
- Try
- Q(C);
- Vars
- B(a);SBLOCK,XR(A)::QAB(C)
- P(c);SBLOCK::R1(A)
- B(a);SBLOCK::R1(A)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- Q(C);
- Vars
- B(a);SBLOCK,XR(A)::QAB(C)
- P(c);SBLOCK::R1(A)
- B(a);SBLOCK::R1(A)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- Q(C);
- Vars
- B(a);SBLOCK,XR(A)::QAB(C)
- P(c);SBLOCK::R1(A)
- B(a);SBLOCK::R1(A)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- Q(C);
- Vars
- B(a);SBLOCK,XR(A)::QAB(C)
- P(c);SBLOCK::R1(A)
- B(a);SBLOCK::R1(A)
- Refutation
- K(b);S_FLIGHT,XR(A)
- Try
- Actual
- Q(C);
- Vars
- K(b);S_FLIGHT,XR(A)::B(G)
- B(a);SBLOCK,XR(A)::QAB(C)
- P(c);SBLOCK::R1(A)
- B(a);SBLOCK::R1(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).