MESON Chess Problem Database
Problem Display
PID: 135786 (8/1K6/R3pp1B/P3kN2/2Bnrn1N/8/8/6Q1 w - - 0 1)
Retter, Yosef
4th Place, Macedonia, 2008
#2
8 + 6
| 721 | Variantim | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qxd4#
- 1...Re2
- 2.Qxd4#
- 1...Re3
- 2.Qxe3#
- 1...Sxf5
- 2.Sf3#
- 1...Re1
- Tries
- 1.Se3?
- threat
- 2.Sg4#
- 1...Rxe3
- 2.Qxe3#
- 1...f5
- 2.Bg7#
- 2.Qg7#
- 1...Sfe2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Sd5
- 2.Sg6#
- 1...Sh5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Sc6!
- threat
- 1.Bxf4+?
- 1...Kxf4
- 2.Qg3#
- 1...Rxf4!
- 1...Kxf4
- 1.Bf8?
- threat
- 2.Bd6#
- 1...Sxf5
- 2.Sf3#
- 1...Re1
- 2.Qxd4#
- 1...Re2
- 2.Qxd4#
- 1...Re3
- 2.Qxe3#
- 1...Sb5!
- threat
- 1.Qh2?
- 1...Sxf5
- 2.Sf3#
- 1...exf5
- 2.Sg6#
- 1...Re1
- 2.Qxf4#
- 1...Re2
- 2.Qxf4#
- 1...Re3
- 2.Qxf4#
- 1...Sc2
- 2.Rxe6#
- 1...Se2
- 2.Rxe6#
- 1...Sb3
- 2.Rxe6#
- 1...Sf3
- 2.Rxe6#
- 1...Sb5
- 2.Rxe6#
- 1...Sc6!
- 1...Sxf5
- 1.Qa1?
- 1...exf5
- 2.Sf3#
- 1...Re1
- 2.Qxd4#
- 1...Re2
- 2.Qxd4#
- 1...Re3
- 2.Qxd4#
- 1...Se2
- 2.Rxe6#
- 1...Sg2
- 2.Rxe6#
- 1...Sd3
- 2.Rxe6#
- 1...Sh3
- 2.Rxe6#
- 1...Sh5
- 2.Rxe6#
- 1...Sg6
- 2.Rxe6#
- 1...Sd5!
- 1...exf5
- 1.Qg3?
- 1...Sxf5
- 2.Sf3#
- 1...exf5
- 2.Sg6#
- 1...Re1
- 2.Qxf4#
- 1...Re2
- 2.Qxf4#
- 1...Re3
- 2.Qxf4#
- 2.Qxe3#
- 1...Sc2
- 2.Rxe6#
- 1...Se2
- 2.Rxe6#
- 1...Sb3
- 2.Rxe6#
- 1...Sf3
- 2.Rxe6#
- 1...Sb5
- 2.Rxe6#
- 1...Sc6!
- 1...Sxf5
- 1.Qg4?
- 1...Sxf5
- 2.Sf3#
- 1...Re1
- 2.Qxf4#
- 1...Re2
- 2.Qxf4#
- 1...Re3
- 2.Qxf4#
- 1...Sc2
- 2.Sf3#
- 1...Sde2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Sfe2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Sd5
- 2.Sg6#
- 1...Sh5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...exf5!
- 1...Sxf5
- 1.Se3?
- Keys
- 1.Qg5!
- 1...Sxf5
- 2.Sf3#
- 1...exf5
- 2.Qxf6#
- 1...fxg5
- 2.Bg7#
- 1...Re1
- 2.Qxf4#
- 1...Re2
- 2.Qxf4#
- 1...Re3
- 2.Qxf4#
- 1...Sc2
- 2.Sf3#
- 1...Sde2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Sfe2
- 2.Sg6#
- 1...Sg2
- 2.Sg6#
- 1...Sd3
- 2.Sg6#
- 1...Sh3
- 2.Sg6#
- 1...Sd5
- 2.Sg6#
- 1...Sh5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Sxf5
- 1.Qg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 15
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAB1(A),XS(a)
- R(b);OGATEB::QAR2(A),XR(b)
- S(a);N_GUARD,SBLOCK,XS(E)::S(C)
- Tries
- Try
- S(E);
- Threat
- S(E)
- Vars
- R(b);OGATE,XS(E)::QAR2(A),XR(b)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- Refutation
- S(a);
- Try
- B(G);CHECK,XS(c)
- Vars
- K(d);S_FLIGHT,XB(G)::QAB1(A)
- Refutation
- R(b);XB(G)
- Try
- B(G);
- Threat
- B(G)
- Vars
- S(a);N_GUARD,SBLOCK,XS(E)::S(C)
- R(b);N_GUARD::QAB1(A),XS(a)
- R(b);OGATEB::QAR2(A),XR(b)
- Refutation
- S(a);
- Try
- Q(A);P_PINS(c)
- Vars
- S(a);N_GUARD,SBLOCK,XS(E)::S(C)
- P(e);SBLOCK,XS(E)::S(C)
- R(b);N_GUARD::QAB1(A),XS(c)
- S(a);N_GUARD::R1(F),XP(e)
- Refutation
- S(a);
- Try
- Q(A);P_PINS(a)
- Vars
- P(e);SBLOCK,XS(E)::S(C)
- R(b);N_GUARD::QAB1(A),XS(a)
- S(c);N_GUARD::R1(F),XP(e)
- Refutation
- S(c);
- Try
- Q(A);P_PINS(c)
- Vars
- S(a);N_GUARD,SBLOCK,XS(E)::S(C)
- P(e);SBLOCK,XS(E)::S(C)
- R(b);N_GUARD::QAB1(A),XS(c)
- S(a);N_GUARD::R1(F),XP(e)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XS(E)::S(C)
- R(b);N_GUARD::QAB1(A),XS(c)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
- Refutation
- P(e);XS(E)
- Try
- Actual
- Q(A);
- Vars
- S(a);N_GUARD,P_SPINS(a),XS(E)::S(C)
- P(e);P_SPINP(e),XS(E)::QAB1(A),XP(f)
- P(f);OGATEB,XQ(A)::B(G)
- R(b);N_GUARD::QAB1(A),XS(c)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(c);N_GUARD::S(C)
- S(c);N_GUARD::S(C),XS(c)
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).