MESON Chess Problem Database
Problem Display
PID: 159905 (2b5/1p1p4/1P1R4/1p3K2/1P1N1N2/1Pn1kP2/1BPb1p2/4nR1B w - - 0 1)
Anonymous
BCPJ (August), 1919
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Bxc1#
- 1...Sxc2
- 2.Sxc2#
- 1...Sg2
- 2.Sxg2#
- 1...Sd3
- 2.Sg2#
- 1...Sxf3
- 2.Sg2#
- 1...Sb1
- 2.Sd5#
- 1...Sd1
- 2.Sd5#
- 1...Sa2
- 2.Sd5#
- 1...Se2
- 2.Sd5#
- 1...Sa4
- 2.Sd5#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Bc1
- Tries
- 1.Sxb5?
- 1...Sxc2
- 2.Rd3#
- 1...Sxf3
- 2.Rd3#
- 1...Sg2
- 2.Rd3#
- 1...Bc1
- 2.Bxc1#
- 1...Sd3
- 2.Rxd3#
- 1...Sb1
- 2.Bd4#
- 1...Sd1
- 2.Bd4#
- 1...Sa2
- 2.Bd4#
- 1...Se2
- 2.Sd5#
- 1...Sa4
- 2.Bd4#
- 1...Se4
- 2.Bd4#
- 1...Sd5
- 2.Bd4#
- 1...Sxb5!
- 1...Sxc2
- 1.Sde6?
- 1...Sxc2
- 2.Rd3#
- 1...Sxf3
- 2.Rd3#
- 1...Sg2
- 2.Rd3#
- 1...Bc1
- 2.Bxc1#
- 1...Sd3
- 2.Rxd3#
- 1...Sb1
- 2.Bd4#
- 1...Sd1
- 2.Bd4#
- 1...Sa2
- 2.Bd4#
- 1...Se2
- 2.Sd5#
- 1...Sa4
- 2.Bd4#
- 1...Se4
- 2.Bd4#
- 1...Sd5
- 2.Bd4#
- 1...dxe6+!
- 1...Sxc2
- 1.Ba1?
- 1...Sxc2
- 2.Sxc2#
- 1...Sxf3
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sd3
- 2.Sg2#
- 1...Sb1
- 2.Sd5#
- 1...Sd1
- 2.Sd5#
- 1...Sa2
- 2.Sd5#
- 1...Se2
- 2.Sd5#
- 1...Sa4
- 2.Sd5#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Bc1!
- 1...Sxc2
- 1.Bxc3?
- threat
- 2.Sd5#
- 1...Sxc2
- 2.Sxc2#
- 1...Bxc3!
- threat
- 1.Re6+?
- 1...Kxd4
- 2.Re4#
- 1...Se4
- 2.Sd5#
- 2.Rxe4#
- 1...dxe6+!
- 1...Kxd4
- 1.Rxd7?
- 1...Sxc2
- 2.Sxc2#
- 1...Sxf3
- 2.Sg2#
- 1...Bc1
- 2.Bxc1#
- 1...Sg2
- 2.Sxg2#
- 1...Sd3
- 2.Sg2#
- 1...Sb1
- 2.Sd5#
- 1...Sd1
- 2.Sd5#
- 1...Sa2
- 2.Sd5#
- 1...Se2
- 2.Sd5#
- 1...Sa4
- 2.Sd5#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Bxd7+!
- 1...Sxc2
- 1.Sxb5?
- Keys
- 1.Sde2!
- 1...Sxc2
- 2.Rd3#
- 1...Sxf3
- 2.Rd3#
- 1...Sxe2
- 2.Sd5#
- 1...Sg2
- 2.Rd3#
- 1...Bc1
- 2.Bxc1#
- 1...Sd3
- 2.Rxd3#
- 1...Sb1
- 2.Bd4#
- 1...Sd1
- 2.Bd4#
- 1...Sa2
- 2.Bd4#
- 1...Sa4
- 2.Bd4#
- 1...Se4
- 2.Bd4#
- 1...Sd5
- 2.Bd4#
- 1...Sxc2
- 1.Sde2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);OGATEB::B(C),XB(b)
- S(a);XP(D)::S(H),XS(a)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- S(a);N_GUARD,XP(F)::S(I)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- Tries
- Try
- S(H);XP(f)
- Vars
- S(a);N_GUARD,XP(D)::R1(L)
- S(a);N_GUARD,XP(F)::R1(L)
- S(a);N_GUARD::R1(L)
- B(b);OGATEB::B(C),XB(b)
- S(a);N_GUARD::R1(L),XS(a)
- S(d);OGATE::B(C)
- S(d);N_GUARD,SBLOCK::S(I)
- Refutation
- S(d);XS(H)
- Try
- S(H);
- Vars
- S(a);N_GUARD,XP(D)::R1(L)
- S(a);N_GUARD,XP(F)::R1(L)
- S(a);N_GUARD::R1(L)
- B(b);OGATEB::B(C),XB(b)
- S(a);N_GUARD::R1(L),XS(a)
- S(d);OGATE::B(C)
- S(d);N_GUARD,SBLOCK::S(I)
- Refutation
- P(h);CHECK,XS(H)
- Try
- B(C);
- Vars
- S(a);XP(D)::S(H),XS(a)
- S(a);N_GUARD,XP(F)::S(I)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- Refutation
- B(b);
- Try
- B(C);XS(d)
- Threat
- S(I)
- Vars
- S(a);XP(D)::S(H),XS(a)
- Refutation
- B(b);XB(C)
- Try
- R(L);CHECK
- Vars
- K(e);P_SPINS(d),S_FLIGHT,XS(H)::R1(L)
- Refutation
- P(h);CHECK,XR(L)
- Try
- R(L);P_SPINR(L),XP(h)
- Vars
- S(a);XP(D)::S(H),XS(a)
- S(a);N_GUARD,XP(F)::S(I)
- B(b);OGATEB::B(C),XB(b)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- Refutation
- B(i);CHECK,XR(L)
- Try
- Actual
- S(H);
- Vars
- S(a);N_GUARD,XP(D)::R1(L)
- S(a);N_GUARD,XP(F)::R1(L)
- S(d);N_GUARD,SBLOCK,XS(H)::S(I)
- S(a);N_GUARD::R1(L)
- B(b);OGATEB::B(C),XB(b)
- S(a);N_GUARD::R1(L),XS(a)
- S(d);OGATE::B(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).