MESON Chess Problem Database
Problem Display
PID: 33376 (6b1/Bp3pQ1/p3Pp2/2pN1R2/n1pk2nr/R2p1P2/2P5/K4N2 w - - 0 1)
Zidek, Alexander
Oberosterreichische Nachrichten, 1988
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qxg4#
- 1...Rh2
- 2.Qxg4#
- 1...Rh3
- 2.Qxg4#
- 1...Rh5
- 2.Qxg4#
- 1...Rh6
- 2.Qxg4#
- 1...Rh7
- 2.Qxg4#
- 1...Rh8
- 2.Qxg4#
- 1...Sb2
- 2.c3#
- 1...Sb6
- 2.c3#
- 1...Sf2
- 2.Qxf6#
- 1...Sh2
- 2.Qxf6#
- 2.Qg1#
- 1...Se3
- 2.Qxf6#
- 1...Sh6
- 2.Qxf6#
- 2.Qg1#
- 1...c3
- 2.Rxa4#
- 1...Rh1
- Tries
- 1.Sc3?
- threat
- 2.Rd5#
- 1...Sxc3
- 2.Bxc5#
- 1...fxe6
- 2.Qd7#
- 1...Rh5
- 2.Qxg4#
- 1...Se3
- 2.Qxf6#
- 1...Se5
- 2.Qg1#
- 1...Sb6!
- threat
- 1.Sde3?
- threat
- 2.Rd5#
- 1...Sxe3
- 2.Qxf6#
- 1...fxe6
- 2.Qd7#
- 1...Rh5
- 2.Qxg4#
- 1...Sc3
- 2.Bxc5#
- 1...Sb6
- 2.c3#
- 1...Se5!
- threat
- 1.Sb4?
- threat
- 2.Rd5#
- 1...fxe6
- 2.Qd7#
- 1...Rh5
- 2.Qxg4#
- 1...Sc3
- 2.Bxc5#
- 1...Sb6
- 2.c3#
- 1...Se3
- 2.Qxf6#
- 1...Se5
- 2.Qg1#
- 1...c3!
- threat
- 1.Sf4?
- threat
- 2.Rd5#
- 1...fxe6
- 2.Qd7#
- 1...c3
- 2.Rxa4#
- 1...Sc3
- 2.Bxc5#
- 1...Sb6
- 2.c3#
- 1...Se3
- 2.Qxf6#
- 1...Se5
- 2.Qg1#
- 1...Rh5!
- threat
- 1.Sb6?
- threat
- 2.Rd5#
- 1...Sxb6
- 2.c3#
- 1...fxe6
- 2.Qd7#
- 1...Rh5
- 2.Qxg4#
- 1...Se3
- 2.Qxf6#
- 1...Se5
- 2.Qg1#
- 1...Sc3!
- threat
- 1.Sxf6?
- threat
- 2.Rd5#
- 1...Sxf6
- 2.Qxf6#
- 2.Qg1#
- 1...fxe6
- 2.Qd7#
- 1...c3
- 2.Rxa4#
- 1...Rh5
- 2.Qxg4#
- 1...Sc3
- 2.Bxc5#
- 1...Sb6
- 2.c3#
- 1...Se5
- 2.Qg1#
- 1...Se3!
- threat
- 1.Se7?
- threat
- 2.Rd5#
- 1...c3
- 2.Rxa4#
- 1...Rh5
- 2.Qxg4#
- 1...Sc3
- 2.Bxc5#
- 1...Sb6
- 2.c3#
- 1...Se3
- 2.Qxf6#
- 1...Se5
- 2.Qg1#
- 1...fxe6!
- threat
- 1.Bxc5+?
- 1...Sxc5
- 2.c3#
- 1...Kxc5!
- 1...Sxc5
- 1.Qxf6+?
- 1...Se5
- 2.Qxe5#
- 1...Sxf6!
- 1...Se5
- 1.Sc3?
- Keys
- 1.Sc7!
- threat
- 2.Rd5#
- 1...fxe6
- 2.Qd7#
- 1...c3
- 2.Rxa4#
- 1...Rh5
- 2.Qxg4#
- 1...Sc3
- 2.Bxc5#
- 1...Sb6
- 2.c3#
- 1...Se3
- 2.Qxf6#
- 1...Se5
- 2.Qg1#
- threat
- 1.Sc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- R(f);N_GUARD,P_PINS(B)::QAR(J),XS(e)
- R(f);N_GUARD::QAR(J),XS(e)
- S(b);N_GUARD::P(C)
- S(b);N_GUARD,N_SPINP(g),P_SPINP(i)::P(C)
- S(e);N_GUARD::QAB(J),XP(i)
- P(c);OGATEB::R(D),XS(b)
- Tries
- Try
- S(F);
- Threat
- R1(G)
- Vars
- S(b);N_GUARD,XS(F)::B(I),XP(g)
- P(k);OGATE,XP(H)::QAR(J)
- R(f);N_GUARD::QAR(J),XS(e)
- S(e);N_GUARD::QAB(J),XP(i)
- S(e);OGATE::QAB(J)
- Refutation
- S(b);N_SPINP(g),P_SPINP(i)
- Try
- S(F);
- Threat
- R1(G)
- Vars
- S(e);N_GUARD,XS(F)::QAB(J),XP(i)
- P(k);OGATE,XP(H)::QAR(J)
- R(f);N_GUARD::QAR(J),XS(e)
- S(b);N_GUARD::B(I),XP(g)
- S(b);N_GUARD,N_SPINP(g),P_SPINP(i)::P(C)
- Refutation
- S(e);
- Try
- S(F);
- Threat
- R1(G)
- Vars
- P(k);OGATE,XP(H)::QAR(J)
- R(f);N_GUARD::QAR(J),XS(e)
- S(b);N_GUARD::B(I),XP(g)
- S(b);N_GUARD,N_SPINP(g),P_SPINP(i)::P(C)
- S(e);N_GUARD::QAB(J),XP(i)
- S(e);OGATE::QAB(J)
- Refutation
- P(c);
- Try
- S(F);
- Threat
- R1(G)
- Vars
- P(k);OGATE,XP(H)::QAR(J)
- P(c);OGATEB,SBLOCK::R(D),XS(b)
- S(b);N_GUARD::B(I),XP(g)
- S(b);N_GUARD,N_SPINP(g),P_SPINP(i)::P(C)
- S(e);N_GUARD::QAB(J),XP(i)
- S(e);OGATE::QAB(J)
- Refutation
- R(f);
- Try
- S(F);N_PINP(g),P_PINP(i)
- Threat
- R1(G)
- Vars
- S(b);N_GUARD,XS(F)::P(C)
- P(k);OGATE,XP(H)::QAR(J)
- R(f);N_GUARD::QAR(J),XS(e)
- S(e);N_GUARD::QAB(J),XP(i)
- S(e);N_SPINP(i),OGATE::QAB(J)
- Refutation
- S(b);
- Try
- S(F);XP(i)
- Threat
- R1(G)
- Vars
- P(k);OGATE,XP(H)::QAR(J)
- P(c);OGATEB,SBLOCK::R(D),XS(b)
- R(f);N_GUARD::QAR(J),XS(e)
- S(b);N_GUARD::B(I),XP(g)
- S(b);N_GUARD,N_SPINP(g)::P(C)
- S(e);OGATE::QAB(J)
- Refutation
- S(e);
- Try
- S(F);
- Threat
- R1(G)
- Vars
- P(c);OGATEB,SBLOCK::R(D),XS(b)
- R(f);N_GUARD::QAR(J),XS(e)
- S(b);N_GUARD::B(I),XP(g)
- S(b);N_GUARD,N_SPINP(g),P_SPINP(i)::P(C)
- S(e);N_GUARD::QAB(J),XP(i)
- S(e);OGATE::QAB(J)
- Refutation
- P(k);XP(H)
- Try
- B(I);CHECK,P_PINP(i),XP(g)
- Vars
- S(b);SBLOCK,XB(I)::P(C)
- Refutation
- K(d);N_SPINP(i),S_FLIGHT,XB(I)
- Try
- Q(J);CHECK,XP(i)
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB1(J),XS(e)
- Refutation
- S(e);XQ(J)
- Try
- Actual
- S(F);
- Threat
- R1(G)
- Vars
- P(k);OGATE,XP(H)::QAR(J)
- P(c);OGATEB,SBLOCK::R(D),XS(b)
- R(f);N_GUARD::QAR(J),XS(e)
- S(b);N_GUARD::B(I),XP(g)
- S(b);N_GUARD,N_SPINP(g),P_SPINP(i)::P(C)
- S(e);N_GUARD::QAB(J),XP(i)
- S(e);OGATE::QAB(J)
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).