MESON Chess Problem Database
Problem Display
PID: 124260 (2bBQ1K1/1p3R1N/8/1pbp3p/R1q3kP/5p2/7P/3N1B1n w - - 0 1)
Golubev, Giorgi P
Gugel, Lev Nikolaevich
30 dnei, 1930
#2
10 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Se3#
- 1...Qf4
- 2.Raxf4#
- 2.Rfxf4#
- 1...Ba3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Bb4
- 2.Se3#
- 1...Bd6
- 2.Se3#
- 1...Bf8
- 2.Se3#
- 1...Be6
- 2.Qxe6#
- 1...Bd7
- 2.Qxd7#
- 1...Sg3
- 2.h3#
- 1...f2
- 2.Qe2#
- 1...d4
- 2.Qe4#
- 1...Qd4
- Tries
- 1.Rxc4+?
- 1...Bd4
- 2.Se3#
- 2.Rxd4#
- 1...dxc4
- 2.Qe4#
- 1...d4
- 2.Se3#
- 2.Qe4#
- 1...bxc4!
- 1...Bd4
- 1.Rf4+?
- 1...Qxf4
- 2.Qg6#
- 1...Kxf4!
- 1...Qxf4
- 1.Qe3?
- threat
- 2.Qg5#
- 2.Qxf3#
- 1...Bxe3
- 2.Sxe3#
- 1...Qf4
- 2.Raxf4#
- 2.Rfxf4#
- 2.Qxf4#
- 1...Bf5
- 2.Qg5#
- 1...f2
- 2.Be2#
- 2.Bh3#
- 2.Qg5#
- 2.Qe2#
- 2.Qf3#
- 2.Qh3#
- 2.h3#
- 1...Be7!
- threat
- 1.Qe5?
- threat
- 2.Rg7#
- 2.Qg7#
- 2.Qg5#
- 2.h3#
- 1...Qf4
- 2.Raxf4#
- 2.Rfxf4#
- 2.Rg7#
- 2.Qxf4#
- 2.Qg7#
- 2.Qg5#
- 1...Be3
- 2.Sxe3#
- 2.h3#
- 1...Bd4
- 2.Rf4#
- 2.Rg7#
- 2.Qf4#
- 2.Qg5#
- 2.h3#
- 1...Bf8
- 2.Se3#
- 2.Qg5#
- 2.h3#
- 1...Bf5
- 2.Qxf5#
- 2.h3#
- 1...Be6
- 2.Qg7#
- 2.Qg5#
- 2.Qxe6#
- 2.h3#
- 1...Sf2
- 2.Rg7#
- 2.Qg3#
- 2.Qg7#
- 2.Qg5#
- 1...f2
- 2.Qg7#
- 2.Qe2#
- 2.Qg5#
- 2.h3#
- 1...d4
- 2.Qf4#
- 2.Qg7#
- 2.Qe4#
- 2.Qg5#
- 2.h3#
- 1...Be7!
- threat
- 1.Qe7?
- threat
- 2.Qg5#
- 1...Be3
- 2.Sxe3#
- 1...Bxe7!
- threat
- 1.Rxc4+?
- Keys
- 1.Bg5!
- threat
- 2.Qxc8#
- 1...Bb4
- 2.Se3#
- 1...Bd4
- 2.Rf4#
- 1...Bf5
- 2.Sf6#
- 1...Be6
- 2.Qxe6#
- 1...Bd7
- 2.Qxd7#
- 1...Sg3
- 2.h3#
- 1...d4
- 2.Qe4#
- threat
- 1.Bg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(c);S_CUTB(f)::S(A)
- B(f);N_GUARD::S(A)
- B(f);N_GUARD::S(A),XB(f)
- B(f);N_GUARD,N_SPINQ(c)::S(A)
- B(j);N_GUARD,P_PINR(F)::QAB(I),XB(j)
- B(j);N_GUARD::QAB(I),XB(j)
- S(a);SBLOCK::P(C)
- P(b);OGATEB::QAB(I)
- P(g);N_GUARD,N_SPINQ(c),P_PINR(F),S_CUTQ(c)::QAR2(I)
- Tries
- Try
- R(D);CHECK,XQ(c)
- Vars
- P(g);N_GUARD,XR(D)::QAR2(I)
- Refutation
- P(e);XR(D)
- Try
- R(F);CHECK,N_PINQ(c)
- Vars
- Q(c);P_SPINQ(c),XR(F)::QAR2(I)
- Refutation
- K(d);P-FLIGHT,P_SPINQ(c),XR(F)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(f);XQ(I)::S(A),XB(f)
- B(j);::QAR1(I)
- Refutation
- B(f);
- Try
- Q(I);
- Threat
- DUALS(4)
- Refutation
- B(f);
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- B(f);N_GUARD::S(A),XB(f)
- Refutation
- B(f);XQ(I)
- Try
- Actual
- B(H);
- Threat
- QAB(I),XB(j)
- Vars
- B(f);N_GUARD,N_SPINQ(c)::S(A)
- B(f);N_SPINQ(c),S_CUTQ(c)::R1(F)
- B(j);SBLOCK::S(G)
- B(j);N_GUARD,P_PINR(F)::QAB(I),XB(j)
- B(j);N_GUARD::QAB(I),XB(j)
- S(a);SBLOCK::P(C)
- P(g);N_GUARD,N_SPINQ(c),P_PINR(F),S_CUTQ(c)::QAR2(I)
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).