MESON Chess Problem Database
Problem Display
PID: 168479 (B2RN3/3ppRK1/1pn1k1pp/4N1r1/2P2B2/5n2/3r2Q1/8 w - - 0 1)
Petite, Efren
2nd Comm., Problemas, 1955
#2
9 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Sc7#
- 1...Rg4
- 2.Qxg4#
- 1...Rxe5
- 2.Qxg6#
- 1...Rh5
- 2.Qxg6#
- 1...Sfd4
- 2.Qd5#
- 1...Scd4
- 2.Bd5#
- 1...d5
- 2.Sc7#
- 1...d6
- 2.Sc7#
- 1...Rd6
- Tries
- 1.Sxf3?
- threat
- 2.Sc7#
- 1...Re5
- 2.Qxg6#
- 1...Se5!
- threat
- 1.Sxc6?
- threat
- 2.Sc7#
- 1...Re5
- 2.Qxg6#
- 1...Se5!
- threat
- 1.Sxd7?
- threat
- 2.Sf8#
- 2.Sc7#
- 1...Sxd8
- 2.Sf8#
- 1...Sfe5
- 2.Sf8#
- 1...Re5
- 2.Sf8#
- 2.Qxg6#
- 1...Sce5
- 2.Sf8#
- 1...Rxd7!
- threat
- 1.Qh3+?
- 1...Rg4
- 2.Qxg4#
- 1...Rf5!
- 1...Rg4
- 1.Sxf3?
- Keys
- 1.Sd3!
- threat
- 2.Sc7#
- 1...Re5
- 2.Qxg6#
- 1...Sfe5
- 2.Qd5#
- 1...Sce5
- 2.Bd5#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(a);SBLOCK::S(I)
- R(c);N_GUARD::QAB(A),XR(c)
- R(c);OGATE,XS(D)::QAR2(A),XP(g)
- R(c);OGATE::QAR2(A),XP(g)
- S(b);OGATE::QAB1(A)
- S(e);OGATE::B(G)
- P(i);::S(I)
- Tries
- Try
- S(D);XS(b)
- Threat
- S(I)
- Vars
- R(c);OGATE::QAR2(A),XP(g)
- Refutation
- S(e);
- Try
- S(D);XS(e)
- Threat
- S(I)
- Vars
- R(c);OGATE::QAR2(A),XP(g)
- Refutation
- S(b);
- Try
- S(D);XP(i)
- Threat
- DUALS(2)
- Vars
- S(e);XR(H)::S(D)
- S(b);::S(D)
- S(e);::S(D)
- Refutation
- R(a);XS(D)
- Try
- Q(A);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAB(A),XR(c)
- Refutation
- R(c);P_SPINR(c)
- Try
- Actual
- S(D);
- Threat
- S(I)
- Vars
- R(c);OGATE::QAR2(A),XP(g)
- S(b);OGATE::QAB1(A)
- S(e);OGATE::B(G)
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).