MESON Chess Problem Database
Problem Display
PID: 185952 (8/4p3/4K3/1p1Np3/1P2kb2/p2pPp1R/n3N2n/B6Q w - - 0 1)
Brown, Carl G
Chess, 1958
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Bxe3
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Bh6
- 2.Sg3#
- 1...Sc1
- 2.Sec3#
- 1...Sc3
- 2.Sexc3#
- 1...Sxb4
- 2.Sec3#
- 1...Sf1
- 2.Qxf3#
- 1...Sg4
- 2.Qxf3#
- 1...dxe2
- 2.Qb1#
- 1...d2
- 2.Qb1#
- 1...Bxe3
- Tries
- 1.Bb2?
- 1...Bxe3
- 2.Sg3#
- 1...Sxb4
- 2.Sec3#
- 1...dxe2
- 2.Qb1#
- 1...d2
- 2.Qb1#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Bh6
- 2.Sg3#
- 1...Sc1
- 2.Sec3#
- 1...Sc3
- 2.Sexc3#
- 1...Sf1
- 2.Qxf3#
- 1...Sg4
- 2.Qxf3#
- 1...axb2!
- 1...Bxe3
- 1.Bxe5?
- 1...Bxe3
- 2.Sg3#
- 1...Sxb4
- 2.Sec3#
- 1...dxe2
- 2.Qb1#
- 1...d2
- 2.Qb1#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Bh6
- 2.Sg3#
- 1...Sc1
- 2.Sec3#
- 1...Sc3
- 2.Sexc3#
- 1...Sf1
- 2.Qxf3#
- 1...Sg4
- 2.Qxf3#
- 1...Bxe5!
- 1...Bxe3
- 1.Rxh2?
- 1...Bxe3
- 2.Sg3#
- 1...Sxb4
- 2.Sec3#
- 1...dxe2
- 2.Qb1#
- 1...d2
- 2.Qb1#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Bh6
- 2.Sg3#
- 1...Sc1
- 2.Sec3#
- 1...Sc3
- 2.Sexc3#
- 1...Bxh2!
- 1...Bxe3
- 1.Qg2?
- threat
- 2.Qg6#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Sg4
- 2.Qxf3#
- 1...fxg2!
- threat
- 1.Qg1?
- threat
- 2.Qg6#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Sg4!
- threat
- 1.Bb2?
- Keys
- 1.Rh8!
- 1...Bxe3
- 2.Sg3#
- 1...Sxb4
- 2.Sec3#
- 1...dxe2
- 2.Qb1#
- 1...d2
- 2.Qb1#
- 1...Sf1
- 2.Qh7#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Bh6
- 2.Sg3#
- 1...Sc1
- 2.Sec3#
- 1...Sc3
- 2.Sexc3#
- 1...Sg4
- 2.Qh7#
- 1...Bxe3
- 1.Rh8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD,XP(D)::S(C)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(a);N_GUARD,XP(F)::S(C)
- S(b);N_GUARD::QAB1(B),XP(e)
- P(d);OGATEB,XS(C)::QAB(B)
- P(d);OGATEB::QAB(B)
- Tries
- Try
- B(A);
- Vars
- B(g);N_GUARD,XP(D)::S(C)
- S(a);N_GUARD,XP(F)::S(C)
- P(d);OGATEB,XS(C)::QAB(B)
- P(d);OGATEB::QAB(B)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(b);N_GUARD::QAB1(B),XP(e)
- Refutation
- P(c);XB(A)
- Try
- B(A);XP(i)
- Vars
- B(g);N_GUARD,XP(D)::S(C)
- S(a);N_GUARD,XP(F)::S(C)
- P(d);OGATEB,XS(C)::QAB(B)
- P(d);OGATEB::QAB(B)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(b);N_GUARD::QAB1(B),XP(e)
- Refutation
- B(g);XB(A)
- Try
- R(E);XS(b)
- Vars
- B(g);N_GUARD,XP(D)::S(C)
- S(a);N_GUARD,XP(F)::S(C)
- P(d);OGATEB,XS(C)::QAB(B)
- P(d);OGATEB::QAB(B)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- B(g);XR(E)
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(b);N_GUARD::QAB1(B),XP(e)
- Refutation
- P(e);N_SPINP(e),XQ(B)
- Try
- Q(B);N_PINP(e)
- Threat
- QAB(B)
- Vars
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- Refutation
- S(b);
- Try
- Actual
- R(E);
- Vars
- B(g);N_GUARD,XP(D)::S(C)
- S(a);N_GUARD,XP(F)::S(C)
- P(d);OGATEB,XS(C)::QAB(B)
- P(d);OGATEB::QAB(B)
- S(b);OGATE::QAB(B)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
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).