MESON Chess Problem Database
Problem Display
PID: 101008 (2n5/n2pppp1/Bq6/1r6/4QBRN/5P1k/1pP5/1K1N4 w - - 0 1)
Heydon, Joseph Kentigern
Good Companions, 1920
#2
9 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Sxf2#
- 1...Qa5
- 2.Sf2#
- 1...Qc7
- 2.Sf2#
- 1...Qd8
- 2.Sf2#
- 1...Qxa6
- 2.Sf2#
- 1...Qc6
- 2.Sf2#
- 1...Qd6
- 2.Sf2#
- 1...Qe6
- 2.Sf2#
- 1...Qf6
- 2.Sf2#
- 1...Qg6
- 2.Sf2#
- 1...Qh6
- 2.Sf2#
- 1...Qb7
- 2.Sf2#
- 1...Qb8
- 2.Sf2#
- 1...Rb3
- 2.Bf1#
- 1...Rb4
- 2.Bf1#
- 1...Ra5
- 2.Bf1#
- 1...Rc5
- 2.Sf2#
- 2.Bf1#
- 1...Rd5
- 2.Bf1#
- 1...Re5
- 2.Bf1#
- 1...Rf5
- 2.Bf1#
- 1...Rg5
- 2.Bf1#
- 1...Rh5
- 2.Bf1#
- 1...Qf2
- Tries
- 1.Qd3?
- threat
- 2.Qf1#
- 1...Qf2
- 2.Sxf2#
- 1...Qg1!
- threat
- 1.Qe1?
- threat
- 2.Qg3#
- 2.Qf1#
- 2.Qh1#
- 1...Qf2
- 2.Sxf2#
- 1...Qg1!
- threat
- 1.Qe2?
- threat
- 2.Qf1#
- 2.Qg2#
- 2.Qh2#
- 1...Qf2
- 2.Sxf2#
- 1...Qg1!
- threat
- 1.Qc4?
- threat
- 2.Qf1#
- 1...Qf2
- 2.Sxf2#
- 1...Qg1!
- threat
- 1.Qd3?
- Keys
- 1.Qh7!
- 1...Qxa6
- 2.Sf2#
- 1...Qg1
- 2.Sf5#
- 1...Qf2
- 2.Sxf2#
- 1...Qe3
- 2.Sf5#
- 1...Qd4
- 2.Sf5#
- 1...Qa5
- 2.Sf2#
- 2.Sf5#
- 1...Qc5
- 2.Sf5#
- 1...Qc7
- 2.Sf2#
- 2.Sf5#
- 1...Qd8
- 2.Sf2#
- 2.Sf5#
- 1...Qc6
- 2.Sf2#
- 1...Qd6
- 2.Sf2#
- 1...Qe6
- 2.Sf2#
- 1...Qf6
- 2.Sf2#
- 1...Qg6
- 2.Sf2#
- 1...Qh6
- 2.Sf2#
- 1...Qb7
- 2.Sf2#
- 2.Sf5#
- 1...Qb8
- 2.Sf2#
- 2.Sf5#
- 1...Rb3
- 2.Sg6#
- 2.Bf1#
- 1...Rb4
- 2.Sg6#
- 2.Bf1#
- 1...Ra5
- 2.Bf1#
- 1...Rc5
- 2.Sf2#
- 2.Bf1#
- 1...Rd5
- 2.Bf1#
- 1...Re5
- 2.Bf1#
- 1...Rf5
- 2.Bf1#
- 1...Rg5
- 2.Bf1#
- 1...Rh5
- 2.Bf1#
- 1...Sc6
- 2.Sf5#
- 1...Sd6
- 2.Sf5#
- 1...d5
- 2.Sg6#
- 1...d6
- 2.Sf5#
- 1...e5
- 2.Sg6#
- 1...e6
- 2.Sf5#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sf5#
- 1...g5
- 2.Sg6#
- 1...g6
- 2.Sf5#
- 1...Qxa6
- 1.Qh7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 7
- Sets
- Q(d);N_GUARD::S(B),XQ(d)
- Q(d);N_GUARD,SBLOCK::S(B)
- Q(d);N_GUARD::S(B)
- Q(d);N_GUARD,XB(I)::S(B)
- R(c);OGATE::B(I)
- R(c);OGATE,SBLOCK::B(I)
- Tries
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- Q(d);N_GUARD::S(B),XQ(d)
- Refutation
- Q(d);P_PINS(B)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- Q(d);N_GUARD::S(B),XQ(d)
- Refutation
- Q(d);
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- Q(d);N_GUARD::S(B),XQ(d)
- Refutation
- Q(d);P_PINS(B)
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- Q(d);N_GUARD::S(B),XQ(d)
- Refutation
- Q(d);P_PINS(B)
- Try
- Actual
- Q(E);
- Vars
- Q(d);N_GUARD,XB(I)::S(B)
- Q(d);N_GUARD,P_PINS(B)::QAR(E)+S(H)
- Q(d);N_GUARD::S(B),XQ(d)
- Q(d);N_GUARD::QAR(E)+S(H)
- Q(d);N_GUARD::S(B)
- Q(d);N_GUARD,P_PINP(C)::S(B)
- R(c);OGATE,SBLOCK::B(I)
- R(c);OGATE::B(I)
- S(e);S_CUTQ(d)::QAR(E)+S(H)
- S(j);S_CUTQ(d)::QAR(E)+S(H)
- P(f);S_CUTR(c)::QAR(E)+S(H)
- P(f);S_CUTQ(d)::QAR(E)+S(H)
- P(g);S_CUTR(c)::QAR(E)+S(H)
- P(g);S_CUTQ(d)::QAR(E)+S(H)
- P(h);S_CUTR(c)::QAR(E)+S(H)
- P(h);S_CUTQ(d)::QAR(E)+S(H)
- P(i);S_CUTR(c)::QAR(E)+S(H)
- P(i);S_CUTQ(d)::QAR(E)+S(H)
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).