MESON Chess Problem Database
Problem Display
PID: 138568 (RRQ5/8/3PNp2/3KbP2/1N6/PkPP4/1np5/1bB5 w - - 0 1)
Chepizhni, Viktor Ivanovich
1st Prize, Deutsche Schachzeitung, 1973
#2
12 + 6
| 6167 | Viktor Chepizhny | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Sd4#
- 1...Bxc3
- 2.Sc5#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Bxd6
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sxd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Bh2
- Tries
- 1.Ke4?
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sc4
- 2.Qxc4#
- 1...Ba2
- 2.Sd5#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sxd3!
- 1...Bxc3
- 1.Sxc2+?
- 1...Ka2
- 2.Rxb2#
- 1...Kxc2!
- 1...Ka2
- 1.Sa6+?
- 1...Kxa3
- 2.Sac5#
- 2.Sac7#
- 1...Ka4
- 2.Sac5#
- 2.Sac7#
- 1...Ka2!
- 1...Kxa3
- 1.Ra6?
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Ba2!
- 1...Bxc3
- 1.Ra7?
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Ba2!
- 1...Bxc3
- 1.Rb5?
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Ba2!
- 1...Bxc3
- 1.Rb6?
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Ba2!
- 1...Bxc3
- 1.Rb7?
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Ba2!
- 1...Bxc3
- 1.Qc5?
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Ba2
- 2.Sc6#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Bxc3!
- 1...Bxd6
- 1.Qc6?
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Ba2!
- 1...Bxc3
- 1.Qc7?
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Ba2!
- 1...Bxc3
- 1.Ke4?
- Keys
- 1.Ra5!
- 1...Bxc3
- 2.Sc5#
- 1...Bxd6
- 2.Sd4#
- 1...Sxd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Ba2
- 2.Sa6#
- 1...Bh2
- 2.Sd4#
- 1...Bg3
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bf4
- 2.Sd4#
- 1...Sd1
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Bxc3
- 1.Ra5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD::S(I)
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD::S(I),XB(e)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD::QAB1(L)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(a);SBLOCK::R(K)+S(E)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- S(b);XP(D)
- Try
- S(E);CHECK,XP(c)
- Vars
- K(d);OGATE,S_FLIGHT::R1(K),XS(b)
- Refutation
- K(d);S_FLIGHT,XS(E)
- Try
- S(E);CHECK
- Refutation
- K(d);S_FLIGHT
- Try
- R(J);
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- B(a);
- Try
- R(J);
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- B(a);
- Try
- R(K);
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- B(a);
- Try
- R(K);
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- B(a);
- Try
- R(K);
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- B(a);
- Try
- Q(L);
- Vars
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(a);SBLOCK::R(K)+S(E)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- B(e);XP(C)
- Try
- Q(L);
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- B(a);
- Try
- Q(L);
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
- Refutation
- B(a);
- Try
- Actual
- R(J);
- Vars
- B(e);SBLOCK,XP(C)::S(I)
- B(e);N_GUARD,XP(H)::S(I)
- S(b);N_GUARD,XP(D)::QAB1(L)
- S(b);N_GUARD::QAB1(L),XS(b)
- B(a);SBLOCK::R(K)+S(E)
- B(e);N_GUARD::S(I)
- B(e);N_GUARD::S(I),XB(e)
- S(b);N_GUARD::QAB1(L)
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).