MESON Chess Problem Database
Problem Display
PID: 222613 (Q7/8/P1N5/3p4/2RpN1K1/1p1kp3/1R2n3/8 w - - 0 1)
Flagg, John O
Nashville Daily American, 1884
#2
7 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Sg3
- 2.Rxd4#
- 1...Sf4
- 2.Rxd4#
- 1...dxc4
- 2.Sb4#
- 2.Se5#
- 1...dxe4
- 2.Se5#
- 1...Sc1
- Tries
- 1.Sb4+?
- 1...Kxe4
- 2.Qxd5#
- 2.Qe8#
- 1...Kxc4!
- 1...Kxe4
- 1.Rxb3+?
- 1...Kxc4
- 2.Sa5#
- 1...Kxe4
- 2.Qe8#
- 1...Sc3!
- 1...Kxc4
- 1.Qe8?
- 1...dxc4
- 2.Sb4#
- 1...dxe4
- 2.Se5#
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Sg3
- 2.Rxd4#
- 1...Sf4
- 2.Rxd4#
- 1...Kxc4!
- 1...dxc4
- 1.Sb4+?
- Keys
- 1.Qb7!
- 1...Kxc4
- 2.Se5#
- 2.Qxb3#
- 1...Kxe4
- 2.Qh7#
- 1...dxc4
- 2.Sb4#
- 2.Se5#
- 1...dxe4
- 2.Se5#
- 1...Sc1
- 2.Rxd4#
- 1...Sg1
- 2.Rxd4#
- 1...Sc3
- 2.Rxd4#
- 1...Sg3
- 2.Rxd4#
- 1...Sf4
- 2.Rxd4#
- 1...Kxc4
- 1.Qb7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R1(B),XP(e)
- P(f);XS(C)::S(F)
- Tries
- Try
- S(F);CHECK
- Refutation
- K(c);S_FLIGHT,XR(B)
- Try
- R(A);CHECK,XP(b)
- Vars
- K(c);S_FLIGHT,XR(B)::S(F)
- K(c);P_SPINP(e),S_FLIGHT,XS(C)::QAR(G)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(G);
- Vars
- P(f);SBLOCK,XR(B)::S(F)
- P(f);SBLOCK,XS(C)::S(F)
- S(a);N_GUARD::R1(B),XP(e)
- Refutation
- K(c);S_FLIGHT,XR(B)
- Try
- Actual
- Q(G);
- Vars
- K(c);OGATEB,P_SPINP(e),S_FLIGHT,XS(C)::QAB(G)
- P(f);XS(C)::S(F)
- S(a);N_GUARD::R1(B),XP(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).