MESON Chess Problem Database
Problem Display
PID: 175218 (3r1nQ1/6r1/P1R1NR2/3k4/3BpP2/6pB/8/3K4 w - - 0 1)
Mackenzie, Arthur Ford
The Times, 1902
#2
9 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Rc5#
- 1...e3
- 2.Bg2#
- 1...Rd6
- Tries
- 1.Ba1?
- threat
- 2.Sc7#
- 1...Sxe6
- 2.Qxe6#
- 1...e3
- 2.Bg2#
- 1...Rc7
- 2.Sxc7#
- 1...Rd6
- 2.Rc5#
- 1...Kxc6+!
- threat
- 1.Bg1?
- threat
- 2.Sc7#
- 1...Sxe6
- 2.Qxe6#
- 1...e3
- 2.Bg2#
- 1...Rc7
- 2.Sxc7#
- 1...Rd6
- 2.Rc5#
- 1...Kxc6+!
- threat
- 1.Bb2?
- threat
- 2.Sc7#
- 1...Sxe6
- 2.Qxe6#
- 1...e3
- 2.Bg2#
- 1...Rc7
- 2.Sxc7#
- 1...Rd6
- 2.Rc5#
- 1...Kxc6+!
- threat
- 1.Bc3?
- threat
- 2.Sc7#
- 1...Sxe6
- 2.Qxe6#
- 1...e3
- 2.Bg2#
- 1...Rc7
- 2.Sxc7#
- 1...Rd6
- 2.Rc5#
- 1...Kxc6+!
- threat
- 1.Be3?
- threat
- 2.Sc7#
- 1...Sxe6
- 2.Qxe6#
- 1...Rc7
- 2.Sxc7#
- 1...Rd6
- 2.Rc5#
- 1...Kxc6+!
- threat
- 1.Be5?
- threat
- 2.Sc7#
- 2.Rc5#
- 1...Sxe6
- 2.Qxe6#
- 1...e3
- 2.Bg2#
- 1...Rc7
- 2.Sxc7#
- 1...Rd6
- 2.Rc5#
- 1...Rc8
- 2.Sc7#
- 1...Sd7
- 2.Sc7#
- 1...Kxc6+!
- threat
- 1.Ba1?
- Keys
- 1.Bb6!
- threat
- 2.Sc7#
- 1...Kxc6+
- 2.Sd4#
- 1...Sxe6
- 2.Qxe6#
- 1...e3
- 2.Bg2#
- 1...Rc7
- 2.Sxc7#
- 1...Rd6
- 2.Rc5#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(e);SBLOCK::R1(F)
- P(b);OGATEB::B(B)
- Tries
- Try
- B(C);
- Threat
- QAB(I)+S(G),DCHECK
- Vars
- S(f);OGATE,P_SPINS(f),XS(G)::QAB1(I),XS(f)
- P(b);OGATEB::B(B)
- R(d);::QAB(I)+S(G),DCHECK,XR(d)
- R(e);SBLOCK::R1(F)
- Refutation
- K(c);CHECK,S_FLIGHT,XR(F)
- Try
- B(C);
- Threat
- QAB(I)+S(G),DCHECK
- Vars
- S(f);OGATE,P_SPINS(f),XS(G)::QAB1(I),XS(f)
- P(b);OGATEB::B(B)
- R(d);::QAB(I)+S(G),DCHECK,XR(d)
- R(e);SBLOCK::R1(F)
- Refutation
- K(c);CHECK,S_FLIGHT,XR(F)
- Try
- B(C);
- Threat
- QAB(I)+S(G),DCHECK
- Vars
- S(f);OGATE,P_SPINS(f),XS(G)::QAB1(I),XS(f)
- P(b);OGATEB::B(B)
- R(d);::QAB(I)+S(G),DCHECK,XR(d)
- R(e);SBLOCK::R1(F)
- Refutation
- K(c);CHECK,S_FLIGHT,XR(F)
- Try
- B(C);
- Threat
- QAB(I)+S(G),DCHECK
- Vars
- S(f);OGATE,P_SPINS(f),XS(G)::QAB1(I),XS(f)
- P(b);OGATEB::B(B)
- R(d);::QAB(I)+S(G),DCHECK,XR(d)
- R(e);SBLOCK::R1(F)
- Refutation
- K(c);CHECK,S_FLIGHT,XR(F)
- Try
- B(C);
- Threat
- QAB(I)+S(G),DCHECK
- Vars
- S(f);OGATE,P_SPINS(f),XS(G)::QAB1(I),XS(f)
- R(d);::QAB(I)+S(G),DCHECK,XR(d)
- R(e);SBLOCK::R1(F)
- Refutation
- K(c);CHECK,S_FLIGHT,XR(F)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- S(f);OGATE,P_SPINS(f),XS(G)::QAB1(I),XS(f)
- P(b);OGATEB::B(B)
- R(d);::QAB(I)+S(G),DCHECK,XR(d)
- R(e);::R1(F)
- R(e);::QAB(I)+S(G),DCHECK
- S(f);::QAB(I)+S(G),DCHECK
- Refutation
- K(c);CHECK,S_FLIGHT,XR(F)
- Try
- Actual
- B(C);
- Threat
- QAB(I)+S(G),DCHECK
- Vars
- K(c);CHECK,S_FLIGHT,XR(F)::R(H)+S(G),DCHECK
- S(f);OGATE,P_SPINS(f),XS(G)::QAB1(I),XS(f)
- P(b);OGATEB::B(B)
- R(d);::QAB(I)+S(G),DCHECK,XR(d)
- R(e);SBLOCK::R1(F)
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).