MESON Chess Problem Database
Problem Display
PID: 274008 (8/7N/4n3/2pn1p2/2P1kp2/2p2N2/2P1PQ1B/6KR w - - 0 1)
Karpov, Valery N
Mat, 1972
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Se3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sdc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sd4
- 2.Shg5#
- 1...Sg5
- 2.Shxg5#
- 1...Sec7
- 2.Shg5#
- 1...Sg7
- 2.Shg5#
- 1...Sd8
- 2.Shg5#
- 1...Sf8
- 2.Shg5#
- 1...Se3
- Tries
- 1.Kf1?
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sdc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sd4
- 2.Shg5#
- 1...Sg5
- 2.Shxg5#
- 1...Sec7
- 2.Shg5#
- 1...Sg7
- 2.Shg5#
- 1...Sd8
- 2.Shg5#
- 1...Sf8
- 2.Shg5#
- 1...Se3+!
- 1...Sb4
- 1.Kg2?
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sdc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sd4
- 2.Shg5#
- 1...Sg5
- 2.Shxg5#
- 1...Sec7
- 2.Shg5#
- 1...Sg7
- 2.Shg5#
- 1...Sd8
- 2.Shg5#
- 1...Sf8
- 2.Shg5#
- 1...Se3+!
- 1...Sb4
- 1.Bg3?
- 1...Se3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sdc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sd4
- 2.Shg5#
- 1...Sg5
- 2.Shxg5#
- 1...Sec7
- 2.Shg5#
- 1...Sg7
- 2.Shg5#
- 1...Sd8
- 2.Shg5#
- 1...Sf8
- 2.Shg5#
- 1...fxg3!
- 1...Se3
- 1.Qxc5?
- 1...Sd4
- 2.Qxd4#
- 1...Sb4
- 2.Sf6#
- 2.Qe5#
- 1...Se3
- 2.Sf6#
- 2.Qe5#
- 1...Sb6
- 2.Sf6#
- 2.Qe5#
- 1...Sf6
- 2.Sxf6#
- 2.Qe5#
- 1...Sdc7
- 2.Sf6#
- 2.Qe5#
- 1...Se7
- 2.Sf6#
- 2.Qe5#
- 1...Sg5
- 2.Shxg5#
- 2.Qd4#
- 1...Sec7
- 2.Shg5#
- 2.Qd4#
- 1...Sg7
- 2.Shg5#
- 2.Qd4#
- 1...Sd8
- 2.Shg5#
- 2.Qd4#
- 1...Sf8
- 2.Shg5#
- 2.Qd4#
- 1...Sxc5!
- 1...Sd4
- 1.e3?
- 1...Sxe3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sdc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sd4
- 2.Shg5#
- 1...Sg5
- 2.Shxg5#
- 1...Sec7
- 2.Shg5#
- 1...Sg7
- 2.Shg5#
- 1...Sd8
- 2.Shg5#
- 1...Sf8
- 2.Shg5#
- 1...fxe3!
- 1...Sxe3
- 1.Kf1?
- Keys
- 1.Bxf4!
- 1...Kxf4
- 2.Rh4#
- 1...Sdxf4
- 2.Sf6#
- 1...Sexf4
- 2.Shg5#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sb6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sdc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...Sd4
- 2.Sfg5#
- 1...Sg5
- 2.Sfxg5#
- 1...Sec7
- 2.Sfg5#
- 1...Sg7
- 2.Sfg5#
- 1...Sd8
- 2.Sfg5#
- 1...Sf8
- 2.Sfg5#
- 1...Kxf4
- 1.Bxf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 12
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(g);N_GUARD::S(I)
- S(g);N_GUARD::S(I),XS(g)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(g);N_GUARD::S(I)
- S(g);N_GUARD::S(I),XS(g)
- Refutation
- S(e);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(g);N_GUARD::S(I)
- S(g);N_GUARD::S(I),XS(g)
- Refutation
- S(e);CHECK
- Try
- B(F);
- Vars
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(g);N_GUARD::S(I)
- S(g);N_GUARD::S(I),XS(g)
- Refutation
- P(c);XB(F)
- Try
- Q(E);XP(d)
- Vars
- S(g);N_GUARD::QAR1(E),XS(g)
- Refutation
- S(g);XQ(E)
- Try
- P(D);
- Vars
- S(e);N_GUARD,XP(D)::S(I)
- S(e);N_GUARD::S(I)
- S(e);N_GUARD::S(I),XS(e)
- S(g);N_GUARD::S(I)
- S(g);N_GUARD::S(I),XS(g)
- Refutation
- P(c);XP(D)
- Try
- Actual
- B(F);XP(c)
- Vars
- K(b);OGATEB,P-FLIGHT,XB(F)::R(B)
- S(e);N_GUARD,SBLOCK,XB(F)::S(I)
- S(g);N_GUARD,SBLOCK,XB(F)::S(I)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(e);N_GUARD::QAR1(E)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(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).