MESON Chess Problem Database
Problem Display
PID: 104011 (6B1/7p/pP5P/K2Rb1RP/3Nkp2/1p1n4/1P2P2B/3N4 w - - 0 1)
Biscan, Dragutin
Sahovski Glasnik, 1958
#2
12 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxd4
- 2.Bxh7#
- 1...Bd6
- 2.Bxh7#
- 1...Bf6
- 2.Bxh7#
- 1...Bc7
- 2.Bxh7#
- 1...Bg7
- 2.Bxh7#
- 1...Bb8
- 2.Bxh7#
- 1...Bh8
- 2.Bxh7#
- 1...Sc1
- 2.Rgxe5#
- 1...Se1
- 2.Rgxe5#
- 1...Sxb2
- 2.Rgxe5#
- 1...Sf2
- 2.Rgxe5#
- 1...Sb4
- 2.Rgxe5#
- 1...Sc5
- 2.Rgxe5#
- 1...f3
- 2.exf3#
- 1...Bxd4
- Tries
- 1.Sf2+?
- 1...Sxf2
- 2.Rgxe5#
- 1...Ke3!
- 1...Sxf2
- 1.Sc2?
- 1...Bc3+
- 2.Sxc3#
- 1...Bxb2
- 2.Bxh7#
- 1...Sxb2
- 2.Sf2#
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Bd4
- 2.Bxh7#
- 2.Rxd4#
- 1...Bd6
- 2.Sc3#
- 2.Bxh7#
- 2.Rd4#
- 1...Bf6
- 2.Bxh7#
- 1...Bc7
- 2.Sc3#
- 2.Bxh7#
- 2.Rd4#
- 1...Bg7
- 2.Bxh7#
- 1...Bb8
- 2.Sc3#
- 2.Bxh7#
- 2.Rd4#
- 1...Bh8
- 2.Bxh7#
- 1...Sc1
- 2.Sf2#
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Se1
- 2.Sf2#
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sf2
- 2.Sxf2#
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sb4
- 2.Sf2#
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sc5
- 2.Sf2#
- 2.Rdxe5#
- 2.Rgxe5#
- 1...f3
- 2.exd3#
- 1...bxc2!
- 1...Bc3+
- 1.Sb5?
- 1...Bc3+
- 2.Sbxc3#
- 1...Bxb2
- 2.Sd6#
- 2.Bxh7#
- 1...Sxb2
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Bd4
- 2.Sd6#
- 2.Bxh7#
- 2.Rxd4#
- 1...Bd6
- 2.Sbc3#
- 2.Sxd6#
- 2.Bxh7#
- 2.Rd4#
- 1...Bf6
- 2.Sd6#
- 2.Bxh7#
- 1...Bc7
- 2.Sbc3#
- 2.Bxh7#
- 2.Rd4#
- 1...Bg7
- 2.Sd6#
- 2.Bxh7#
- 1...Bb8
- 2.Sbc3#
- 2.Bxh7#
- 2.Rd4#
- 1...Bh8
- 2.Sd6#
- 2.Bxh7#
- 1...Sc1
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Se1
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sf2
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sb4
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sc5
- 2.Rdxe5#
- 2.Rgxe5#
- 1...f3
- 2.exd3#
- 1...axb5!
- 1...Bc3+
- 1.Sc6?
- 1...Bxb2
- 2.Bxh7#
- 1...Sxb2
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Bd4
- 2.Bxh7#
- 2.Rxd4#
- 1...Bd6
- 2.Bxh7#
- 2.Rd4#
- 1...Bf6
- 2.Bxh7#
- 1...Bc7
- 2.Bxh7#
- 2.Rd4#
- 1...Bg7
- 2.Bxh7#
- 1...Bb8
- 2.Bxh7#
- 2.Rd4#
- 1...Bh8
- 2.Bxh7#
- 1...Sc1
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Se1
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sf2
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sb4
- 2.Rdxe5#
- 2.Rgxe5#
- 1...Sc5
- 2.Rdxe5#
- 2.Rgxe5#
- 1...f3
- 2.exd3#
- 1...Bc3+!
- 1...Bxb2
- 1.Bg1?
- threat
- 2.Sc3#
- 1...Bxd4
- 2.Bxh7#
- 2.Rxd4#
- 1...Sf2
- 2.Rgxe5#
- 1...f3!
- threat
- 1.Bg3?
- 1...Bxd4
- 2.Bxh7#
- 1...Sxb2
- 2.Rgxe5#
- 1...Bd6
- 2.Bxh7#
- 1...Bf6
- 2.Bxh7#
- 1...Bc7
- 2.Bxh7#
- 1...Bg7
- 2.Bxh7#
- 1...Bb8
- 2.Bxh7#
- 1...Bh8
- 2.Bxh7#
- 1...Sc1
- 2.Rgxe5#
- 1...Se1
- 2.Rgxe5#
- 1...Sf2
- 2.Rgxe5#
- 1...Sb4
- 2.Rgxe5#
- 1...Sc5
- 2.Rgxe5#
- 1...f3
- 2.exf3#
- 1...fxg3!
- 1...Bxd4
- 1.b7?
- 1...Bxd4
- 2.Bxh7#
- 1...Sxb2
- 2.Rgxe5#
- 1...Bd6
- 2.Bxh7#
- 1...Bf6
- 2.Bxh7#
- 1...Bg7
- 2.Bxh7#
- 1...Bb8
- 2.Bxh7#
- 1...Bh8
- 2.Bxh7#
- 1...Sc1
- 2.Rgxe5#
- 1...Se1
- 2.Rgxe5#
- 1...Sf2
- 2.Rgxe5#
- 1...Sb4
- 2.Rgxe5#
- 1...Sc5
- 2.Rgxe5#
- 1...f3
- 2.exf3#
- 1...Bc7+!
- 1...Bxd4
- 1.Sf2+?
- Keys
- 1.Sf5!
- 1...Bc3+
- 2.Sxc3#
- 1...Bxb2
- 2.Sd6#
- 1...Sxb2
- 2.Sf2#
- 1...Bd4
- 2.Sd6#
- 1...Bd6
- 2.Sc3#
- 2.Sxd6#
- 1...Bf6
- 2.Sd6#
- 1...Bc7
- 2.Sc3#
- 1...Bg7
- 2.Sd6#
- 1...Bb8
- 2.Sc3#
- 1...Bh8
- 2.Sd6#
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...f3
- 2.exd3#
- 1...Bc3+
- 1.Sf5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 13
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(e);XS(E)::B(L),XP(g)
- B(e);::B(L),XP(g)
- B(e);P_PINP(J)::B(L),XP(g)
- S(b);N_GUARD::R1(H),XB(e)
- S(b);N_GUARD,XP(B)::R1(H),XB(e)
- P(d);OGATE::P(C),XP(d)
- Tries
- Try
- S(A);CHECK
- Vars
- S(b);XS(A)::R1(H),XB(e)
- Refutation
- K(c);P-FLIGHT
- Try
- S(E);
- Vars
- B(e);CHECK,N_GUARD::S(A),XB(e)
- B(e);XP(B)::B(L),XP(g)
- B(e);::B(L),XP(g)
- P(d);SBLOCK::P(C),XS(b)
- Refutation
- P(a);XS(E)
- Try
- S(E);
- Vars
- B(e);CHECK,N_GUARD::S(E),XB(e)
- P(d);SBLOCK::P(C),XS(b)
- Refutation
- P(f);XS(E)
- Try
- S(E);
- Vars
- B(e);XP(B)::B(L),XP(g)
- B(e);::B(L),XP(g)
- P(d);SBLOCK::P(C),XS(b)
- Refutation
- B(e);CHECK
- Try
- B(D);
- Threat
- S(A)
- Vars
- S(b);N_GUARD::R1(H),XB(e)
- Refutation
- P(d);
- Try
- B(D);
- Vars
- B(e);XS(E)::B(L),XP(g)
- S(b);N_GUARD,XP(B)::R1(H),XB(e)
- B(e);::B(L),XP(g)
- B(e);P_PINP(J)::B(L),XP(g)
- S(b);N_GUARD::R1(H),XB(e)
- P(d);OGATE::P(C),XP(d)
- Refutation
- P(d);XB(D)
- Try
- P(J);
- Vars
- B(e);XS(E)::B(L),XP(g)
- S(b);N_GUARD,XP(B)::R1(H),XB(e)
- B(e);::B(L),XP(g)
- S(b);N_GUARD::R1(H),XB(e)
- P(d);OGATE::P(C),XP(d)
- Refutation
- B(e);CHECK
- Try
- Actual
- S(E);
- Vars
- B(e);CHECK,N_GUARD::S(A),XB(e)
- B(e);N_GUARD,XP(B)::S(E)
- S(b);N_GUARD,XP(B)::S(A)
- B(e);N_GUARD::S(E)
- B(e);N_GUARD,P_PINP(J)::S(A)
- B(e);N_GUARD::S(A)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- P(d);SBLOCK::P(C),XS(b)
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).