MESON Chess Problem Database
Problem Display
PID: 106824 (6kn/3NR3/6rR/5N2/p4P2/Knp2r1p/B1P4b/7Q w - - 0 1)
Loyd, Sam
New York State Chess Association, 1892
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Qa8#
- 1...Rf2
- 2.Qa8#
- 1...Rd3
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Rfg3
- 2.Qa8#
- 1...Rxf4
- 2.Qa8#
- 1...Ra6
- 2.Rg7#
- 1...Rb6
- 2.Rg7#
- 1...Rc6
- 2.Rg7#
- 1...Rd6
- 2.Rg7#
- 1...Re6
- 2.Rg7#
- 1...Rf6
- 2.Rg7#
- 1...Rxh6
- 2.Sxh6#
- 2.Rg7#
- 1...Rg7
- 2.Rxg7#
- 1...Sf7
- 2.Re8#
- 1...Rf1
- Tries
- 1.Bxb3+?
- 1...Re6
- 2.Rg7#
- 1...Sf7
- 2.Bxf7#
- 2.Re8#
- 1...axb3!
- 1...Re6
- 1.Reh7?
- threat
- 2.Se7#
- 1...Rxh6
- 2.Rg7#
- 1...Rg7
- 2.Rxg7#
- 1...Re6
- 2.Rg7#
- 1...Re3!
- threat
- 1.Qxf3?
- threat
- 2.Qa8#
- 1...Ra6
- 2.Rg7#
- 1...Rb6
- 2.Rg7#
- 1...Rc6
- 2.Rg7#
- 1...Rf6
- 2.Rg7#
- 1...Sf7
- 2.Re8#
- 1...Bxf4!
- threat
- 1.Bxb3+?
- Keys
- 1.Rxh3!
- 1...Rxh3
- 2.Qa8#
- 1...Rxf4
- 2.Qa8#
- 1...Bxf4
- 2.Rxh8#
- 1...Rf1
- 2.Qa8#
- 1...Rf2
- 2.Qa8#
- 1...Rd3
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Rfg3
- 2.Qa8#
- 1...Rg1
- 2.Sh6#
- 1...Rg2
- 2.Sh6#
- 1...Rgg3
- 2.Sh6#
- 1...Rg4
- 2.Sh6#
- 1...Rg5
- 2.Sh6#
- 1...Ra6
- 2.Rg7#
- 1...Rb6
- 2.Rg7#
- 1...Rc6
- 2.Rg7#
- 1...Rd6
- 2.Rg7#
- 1...Re6
- 2.Rg7#
- 1...Rf6
- 2.Rg7#
- 1...Rh6
- 2.Sxh6#
- 2.Rg7#
- 1...Rg7
- 2.Rxg7#
- 1...Bg1
- 2.Rxh8#
- 1...Bg3
- 2.Rxh8#
- 1...Sf7
- 2.Re8#
- 1...Rxh3
- 1.Rxh3!
This is a version of 46499
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- R(d);OGATE::QAR(A)
- R(d);OGATE,XP(E)::QAR(A)
- R(g);N_GUARD::R1(I)
- R(g);N_GUARD,N_SPINS(b)::R1(I)
- R(g);N_GUARD::R1(I),XR(g)
- S(i);N_SPINS(b),SBLOCK::R(I)
- Tries
- Try
- B(B);CHECK,XS(b)
- Vars
- R(g);P_SPINR(g)::R1(I)
- Refutation
- P(f);XB(B)
- Try
- R(I);
- Threat
- S(F)
- Vars
- R(g);N_GUARD,XR(G)::R1(I)
- R(g);N_GUARD::R1(I),XR(g)
- R(g);N_GUARD,N_SPINS(b)::R1(I)
- Refutation
- R(d);
- Try
- Q(A);XR(d)
- Threat
- QAR(A)
- Vars
- R(g);N_GUARD::R1(I)
- S(i);N_SPINS(b),SBLOCK::R(I)
- Refutation
- B(a);XP(E)
- Try
- Actual
- R(G);XP(e)
- Vars
- R(d);OGATE,XR(G)::QAR(A)
- R(d);OGATE,XP(E)::QAR(A)
- B(a);XP(E)::R1(G),XS(i)
- R(d);OGATE::QAR(A)
- R(g);N_GUARD::S(F)
- R(g);N_GUARD::R1(I)
- R(g);N_GUARD,N_SPINS(b)::R1(I)
- R(g);N_GUARD::R1(I),XR(g)
- B(a);::R1(G),XS(i)
- S(i);N_SPINS(b),SBLOCK::R(I)
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).