MESON Chess Problem Database
Problem Display
PID: 195016 (8/8/Kn1N4/2N2pnb/pPBk4/2p1p3/7B/7Q w - - 0 1)
Richmond, OH
Pittsburgh Sun, 1918
#2
7 + 8
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Qxd1#
- 1...Bg6
- 2.Qd1#
- 1...Bf7
- 2.Qd1#
- 1...Be8
- 2.Qd1#
- 1...Sf3
- 2.Se6#
- 1...Sh3
- 2.Se6#
- 1...Se4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...Sxc4
- 2.Sb5#
- 2.Sxf5#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...c2
- 2.Qa1#
- 1...e2
- 2.Qg1#
- 1...a3
- 2.Sb3#
- 1...Bd1
- Tries
- 1.Kxb6?
- threat
- 2.Qd5#
- 1...c2
- 2.Qa1#
- 1...e2
- 2.Qg1#
- 1...Bf7
- 2.Qd1#
- 1...Sf3
- 2.Se6#
- 1...Se4
- 2.Se6#
- 1...Bf3!
- threat
- 1.Bg3?
- 1...Sxc4
- 2.Sb5#
- 2.Sxf5#
- 1...c2
- 2.Qa1#
- 1...e2
- 2.Qg1#
- 1...Sf3
- 2.Se6#
- 1...Bd1
- 2.Qxd1#
- 2.Qh8#
- 1...Be2
- 2.Qh8#
- 1...Bf3
- 2.Qh8#
- 1...Bg4
- 2.Qh8#
- 1...Bg6
- 2.Qd1#
- 2.Qh8#
- 1...Bf7
- 2.Qd1#
- 2.Qh8#
- 1...Be8
- 2.Qd1#
- 2.Qh8#
- 1...Sh3
- 2.Se6#
- 1...Se4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...a3
- 2.Sb3#
- 1...f4!
- 1...Sxc4
- 1.Qe4+?
- 1...Sxe4
- 2.Se6#
- 1...fxe4!
- 1...Sxe4
- 1.Kxb6?
- Keys
- 1.Bf4!
- 1...Sxc4
- 2.Sb5#
- 2.Sxf5#
- 1...c2
- 2.Qa1#
- 1...Sf3
- 2.Se6#
- 1...Bd1
- 2.Qxd1#
- 2.Qh8#
- 1...Be2
- 2.Qh8#
- 1...Bf3
- 2.Qh8#
- 1...Bg4
- 2.Qh8#
- 1...Bg6
- 2.Qd1#
- 2.Qh8#
- 1...Bf7
- 2.Qd1#
- 2.Qh8#
- 1...Be8
- 2.Qd1#
- 2.Qh8#
- 1...Sh3
- 2.Se6#
- 1...Se4
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sf7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...e2
- 2.Qg1#
- 1...a3
- 2.Sb3#
- 1...Sxc4
- 1.Bf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- B(g);N_GUARD::QAR(A),XB(g)
- B(g);N_GUARD::QAR(A)
- S(f);N_GUARD::S(E)
- S(f);N_GUARD::S(E),XS(f)
- S(h);N_GUARD::QAR1(A),XS(h)
- S(h);N_GUARD::QAR1(A)
- P(a);OGATEB::QAB(A)
- P(b);OGATEB::QAB(A)
- P(c);N_GUARD::S(E)
- Tries
- Try
- K(F);P-FLIGHT,XS(h)
- Threat
- QAR1(A)
- Vars
- P(a);OGATEB::QAB(A)
- P(b);OGATEB::QAB(A)
- B(g);N_GUARD::QAR(A)
- S(f);N_GUARD::S(E)
- Refutation
- B(g);
- Try
- B(B);
- Vars
- P(a);OGATEB::QAB(A)
- P(b);OGATEB::QAB(A)
- S(f);N_GUARD::S(E)
- B(g);OGATE,P_PINB(D)::QAB(A)
- B(g);OGATE::QAB(A)
- S(f);N_GUARD::S(E),XS(f)
- S(h);N_GUARD::QAR1(A),XS(h)
- S(h);N_GUARD::QAR1(A)
- P(c);N_GUARD::S(E)
- Refutation
- P(e);
- Try
- Q(A);CHECK
- Vars
- S(f);XQ(A)::S(E)
- Refutation
- P(e);XQ(A)
- Try
- Actual
- B(B);
- Vars
- P(a);OGATEB::QAB(A)
- S(f);N_GUARD::S(E)
- B(g);OGATE,P_PINB(D)::QAB(A)
- B(g);OGATE::QAB(A)
- S(f);N_GUARD::S(E),XS(f)
- S(h);N_GUARD::QAR1(A),XS(h)
- S(h);N_GUARD::QAR1(A)
- P(b);OGATEB::QAB(A)
- P(c);N_GUARD::S(E)
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).