MESON Chess Problem Database
Problem Display
PID: 70829 (5n2/8/1p3p2/1Q2bp2/Kn1N1kBB/p1Np3P/Rp6/4R3 w - - 0 1)
Toth, Julius
Magyar Sakkvilag, 1934
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Bxd4
- 2.Qxf5#
- 1...Bd6
- 2.Qxf5#
- 1...Bc7
- 2.Qxf5#
- 1...Bb8
- 2.Qxf5#
- 1...Sxa2
- 2.Sd5#
- 1...Sc2
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sa6
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Se6
- 2.Sxe6#
- 1...Sg6
- 2.Se6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...b1Q
- 2.Rf2#
- 1...b1S
- 2.Rf2#
- 1...b1B
- 2.Rf2#
- 1...b1R
- 2.Rf2#
- 1...d2
- 2.Qf1#
- 1...fxg4
- 2.Re4#
- 1...Bxd4
- Tries
- 1.Sxf5?
- threat
- 2.Rf1#
- 2.Re4#
- 1...b1Q
- 2.Re4#
- 2.Rf2#
- 1...b1R
- 2.Re4#
- 2.Rf2#
- 1...Bd4
- 2.Re4#
- 1...Bxc3!
- threat
- 1.Bd1?
- 1...Sxa2
- 2.Sd5#
- 1...b1Q
- 2.Rf2#
- 1...b1S
- 2.Rf2#
- 1...b1B
- 2.Rf2#
- 1...b1R
- 2.Rf2#
- 1...Bd6
- 2.Qxf5#
- 1...Bc7
- 2.Qxf5#
- 1...Bb8
- 2.Qxf5#
- 1...Sc2
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sa6
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Se6
- 2.Sxe6#
- 1...Sg6
- 2.Se6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...d2
- 2.Qf1#
- 1...Bxd4!
- 1...Sxa2
- 1.Bh5?
- 1...Sxa2
- 2.Sd5#
- 1...b1Q
- 2.Rf2#
- 1...b1S
- 2.Rf2#
- 1...b1B
- 2.Rf2#
- 1...b1R
- 2.Rf2#
- 1...Bd6
- 2.Qxf5#
- 1...Bc7
- 2.Qxf5#
- 1...Bb8
- 2.Qxf5#
- 1...Sc2
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sa6
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Se6
- 2.Sxe6#
- 1...Sg6
- 2.Se6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...d2
- 2.Qf1#
- 1...Bxd4!
- 1...Sxa2
- 1.Re3?
- threat
- 2.Rf3#
- 1...fxg4
- 2.Re4#
- 1...Kxe3!
- threat
- 1.Rxb2?
- threat
- 2.Rf2#
- 1...Bxd4
- 2.Qxf5#
- 1...Sc2
- 2.Sd5#
- 1...d2
- 2.Qf1#
- 1...axb2!
- threat
- 1.Qxd3?
- threat
- 2.Sce2#
- 2.Sde2#
- 2.Rf1#
- 2.Qf1#
- 2.Qxf5#
- 2.Qd2#
- 2.Qe3#
- 2.Qf3#
- 2.Qg3#
- 1...Bxd4
- 2.Qxf5#
- 2.Qf3#
- 2.Qg3#
- 2.Qxd4#
- 1...Sxd3
- 2.Sd5#
- 1...fxg4
- 2.Sce2#
- 2.Sde2#
- 2.Rf1#
- 2.Re4#
- 2.Qf1#
- 2.Qe4#
- 2.Qf5#
- 2.Qd2#
- 2.Qe3#
- 2.Qg3#
- 1...b1Q
- 2.Sce2#
- 2.Sde2#
- 2.Rf2#
- 2.Qf1#
- 2.Qd2#
- 2.Qe3#
- 2.Qf3#
- 2.Qg3#
- 1...b1S
- 2.Sce2#
- 2.Sde2#
- 2.Rf1#
- 2.Rf2#
- 2.Qf1#
- 2.Qxf5#
- 2.Qe3#
- 2.Qf3#
- 2.Qg3#
- 1...b1B
- 2.Sce2#
- 2.Sde2#
- 2.Rf1#
- 2.Rf2#
- 2.Qf1#
- 2.Qd2#
- 2.Qe3#
- 2.Qf3#
- 2.Qg3#
- 1...b1R
- 2.Sce2#
- 2.Sde2#
- 2.Rf2#
- 2.Qf1#
- 2.Qxf5#
- 2.Qd2#
- 2.Qe3#
- 2.Qf3#
- 2.Qg3#
- 1...Bd6
- 2.Qf1#
- 2.Qxf5#
- 2.Qd2#
- 2.Qe3#
- 2.Qf3#
- 2.Qg3#
- 1...Bc7
- 2.Qf1#
- 2.Qxf5#
- 2.Qd2#
- 2.Qe3#
- 2.Qf3#
- 2.Qg3#
- 1...Bb8
- 2.Qf1#
- 2.Qxf5#
- 2.Qd2#
- 2.Qe3#
- 2.Qf3#
- 2.Qg3#
- 1...Sc2
- 2.Sce2#
- 2.Sd5#
- 2.Sde2#
- 2.Rf1#
- 2.Qf1#
- 2.Qxf5#
- 2.Qf3#
- 2.Qg3#
- 1...Sd5
- 2.Sce2#
- 2.Sxd5#
- 2.Sde2#
- 2.Rf1#
- 2.Qf1#
- 2.Qxf5#
- 2.Qf3#
- 2.Qg3#
- 1...b5+!
- threat
- 1.Qc4?
- threat
- 2.Se6#
- 1...Bxd4
- 2.Qxd4#
- 1...fxg4
- 2.Re4#
- 1...Se6
- 2.Sxe6#
- 1...b5+!
- threat
- 1.Qc6?
- threat
- 2.Qf3#
- 1...Sxc6
- 2.Sd5#
- 1...fxg4
- 2.Re4#
- 2.Qe4#
- 1...Sd5
- 2.Sxd5#
- 1...b5+!
- threat
- 1.Qd7?
- threat
- 2.Qxf5#
- 1...Sxd7
- 2.Se6#
- 1...fxg4
- 2.Re4#
- 2.Qxg4#
- 2.Qf5#
- 1...Se6
- 2.Sxe6#
- 1...b5+!
- threat
- 1.Qxb4?
- threat
- 2.Sd5#
- 2.Se6#
- 1...Bxd4
- 2.Sd5#
- 2.Qxd4#
- 1...fxg4
- 2.Sd5#
- 2.Re4#
- 1...Se6
- 2.Sd5#
- 2.Sxe6#
- 1...b5+!
- threat
- 1.Qd5?
- threat
- 2.Qf3#
- 1...Sxd5
- 2.Sxd5#
- 1...fxg4
- 2.Re4#
- 2.Qe4#
- 1...b5+!
- threat
- 1.Sxf5?
- Keys
- 1.Qxb6!
- 1...Bxd4
- 2.Qxd4#
- 1...Sxa2
- 2.Sd5#
- 1...fxg4
- 2.Re4#
- 1...b1Q
- 2.Rf2#
- 1...b1S
- 2.Rf2#
- 1...b1B
- 2.Rf2#
- 1...b1R
- 2.Rf2#
- 1...Bd6
- 2.Qxd6#
- 1...Bc7
- 2.Qxc7#
- 1...Bb8
- 2.Qxb8#
- 1...Sc2
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sa6
- 2.Sd5#
- 1...Sc6
- 2.Sd5#
- 1...Se6
- 2.Sxe6#
- 1...Sg6
- 2.Se6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...d2
- 2.Sde2#
- 1...Bxd4
- 1.Qxb6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(f);OGATE,XS(F)::QAR1(I),XP(g)
- B(f);OGATE::QAR1(I),XP(g)
- S(d);N_GUARD,XR(B)::S(C)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(j);N_GUARD::S(F),XS(j)
- S(j);N_GUARD::S(F)
- P(a);OGATE::R(B)
- P(c);OGATE::QAR(I)
- P(g);N_GUARD,XB(G)::R1(A)
- Tries
- Try
- S(F);XP(g)
- Threat
- DUALS(2)
- Vars
- B(f);::R1(A)
- Refutation
- B(f);XS(C)
- Try
- B(G);
- Vars
- S(d);N_GUARD,XR(B)::S(C)
- P(a);OGATE::R(B)
- B(f);OGATE::QAR1(I),XP(g)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(j);N_GUARD::S(F),XS(j)
- S(j);N_GUARD::S(F)
- P(c);OGATE::QAR(I)
- Refutation
- B(f);XS(F)
- Try
- B(G);
- Vars
- S(d);N_GUARD,XR(B)::S(C)
- P(a);OGATE::R(B)
- B(f);OGATE::QAR1(I),XP(g)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(j);N_GUARD::S(F),XS(j)
- S(j);N_GUARD::S(F)
- P(c);OGATE::QAR(I)
- Refutation
- B(f);XS(F)
- Try
- R(A);
- Threat
- R1(A)
- Vars
- P(g);N_GUARD,XB(G)::R1(A)
- Refutation
- K(e);S_FLIGHT,XR(A)
- Try
- R(B);XP(a)
- Threat
- R(B)
- Vars
- B(f);OGATE,XS(F)::QAR1(I),XP(g)
- S(d);N_GUARD::S(C)
- P(c);OGATE::QAR(I)
- Refutation
- P(b);XR(B)
- Try
- Q(I);XP(c)
- Threat
- DUALS(9)
- Vars
- S(d);N_GUARD,XQ(I)::S(C)
- Refutation
- P(h);CHECK
- Try
- Q(I);
- Threat
- QAR(I)+S(F),DCHECK
- Vars
- B(f);OGATE,P_SPINB(f),XS(F)::QAR2(I),XB(f)
- P(g);N_GUARD,XB(G)::R1(A)
- S(j);::QAR(I)+S(F),DCHECK,XS(j)
- Refutation
- P(h);CHECK
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- S(d);N_GUARD,XQ(I)::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(h);CHECK
- Try
- Q(I);
- Threat
- QAR1(I),XP(g)
- Vars
- S(j);N_GUARD,XQ(I)::S(F)
- S(j);N_GUARD::S(F),XS(j)
- Refutation
- P(h);CHECK
- Try
- Q(I);XS(d)
- Threat
- DUALS(2)
- Refutation
- P(h);CHECK
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- S(d);XQ(I)::S(C),XS(d)
- Refutation
- P(h);CHECK
- Try
- Actual
- Q(I);XP(h)
- Vars
- B(f);OGATE,XS(F)::QAR2(I),XB(f)
- S(d);N_GUARD,XR(B)::S(C)
- P(g);N_GUARD,XB(G)::R1(A)
- P(a);OGATE::R(B)
- B(f);OGATEB::QAB(I),XB(f)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(j);N_GUARD::S(F),XS(j)
- S(j);N_GUARD::S(F)
- P(c);N_GUARD::S(F)
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).