MESON Chess Problem Database
Problem Display
PID: 78280 (rB3N2/N3bQ1R/BR1pb1r1/K1k1p3/1nP5/P1P4n/3P4/1q6 w - - 0 1)
Loshinski, Lev Ilich
Pimenov, Sergey Ivanovich
Umnov, Evgeny Ivanovich
L'Echiquier, 1930
#2
12 + 10
| 102 | Probleemblad | 1974 |
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.axb4#
- 1...Qd3
- 2.axb4#
- 1...Qe4
- 2.axb4#
- 1...Qf5
- 2.axb4#
- 1...Qc1
- 2.axb4#
- 1...Qd1
- 2.axb4#
- 1...Qe1
- 2.axb4#
- 1...Qf1
- 2.axb4#
- 1...Qg1
- 2.axb4#
- 1...Qh1
- 2.axb4#
- 1...Rg1
- 2.Sxe6#
- 1...Rg2
- 2.Sxe6#
- 1...Rg3
- 2.Sxe6#
- 1...Rg4
- 2.Sxe6#
- 1...Rg5
- 2.Sxe6#
- 1...Rg7
- 2.Sxe6#
- 1...Rg8
- 2.Sxe6#
- 1...Bxc4
- 2.Sd7#
- 2.Qxc4#
- 1...Bg4
- 2.Rb5#
- 1...Bd5
- 2.Sd7#
- 1...Bf5
- 2.Rb5#
- 1...Bd7
- 2.Sxd7#
- 1...Bxf7
- 2.Sd7#
- 1...Bc8
- 2.Rb5#
- 1...Bh4
- 2.Bxd6#
- 1...Bg5
- 2.Bxd6#
- 1...Bf6
- 2.Sxe6#
- 2.Bxd6#
- 1...Bd8
- 2.Bxd6#
- 1...Sg1
- 2.Qf2#
- 1...Sf2
- 2.Qxf2#
- 1...Sg5
- 2.Qf2#
- 1...Sa2
- 2.Rc6#
- 1...Sc2
- 2.Rc6#
- 1...Sd3
- 2.Rc6#
- 1...Sd5
- 2.Rc6#
- 1...Sxa6
- 2.Rc6#
- 1...Sc6+
- 2.Rxc6#
- 1...d5
- 2.Qxe7#
- 1...Qc2
- Tries
- 1.Qxe6?
- threat
- 2.Sd7#
- 2.Rb5#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxe6
- 2.Sxe6#
- 2.Sd7#
- 1...Rxb8
- 2.Sd7#
- 1...Bxf8
- 2.Rb5#
- 1...Sxa6
- 2.Sd7#
- 2.Rc6#
- 2.Qd5#
- 1...Bd8
- 2.Sd7#
- 2.Bxd6#
- 1...Sa2
- 2.Sd7#
- 2.Rc6#
- 2.Qd5#
- 2.Qc8#
- 1...Sc2
- 2.Sd7#
- 2.Rc6#
- 2.Qd5#
- 2.Qc8#
- 1...Sd3
- 2.Sd7#
- 2.Rc6#
- 2.Qd5#
- 2.Qc8#
- 1...Sd5
- 2.Sd7#
- 2.Rc6#
- 2.Qxd5#
- 1...d5
- 2.Sd7#
- 1...Rxa7!
- threat
- 1.Qe8?
- threat
- 2.Qb5#
- 1...Sc6+
- 2.Rxc6#
- 2.Qxc6#
- 1...Sxa6
- 2.Rc6#
- 2.Qc6#
- 1...Bd7
- 2.Sxd7#
- 1...Sa2
- 2.Rc6#
- 2.Qc6#
- 1...Sc2
- 2.Rc6#
- 2.Qc6#
- 1...Sd3
- 2.Rc6#
- 2.Qc6#
- 1...Sd5
- 2.Rc6#
- 2.Qc6#
- 1...Bxc4!
- threat
- 1.Qf3?
- threat
- 2.Qe3#
- 1...Sc6+
- 2.Rxc6#
- 2.Qxc6#
- 1...Bxc4
- 2.Sd7#
- 1...Sxa6
- 2.Rc6#
- 2.Qc6#
- 1...Qd3
- 2.axb4#
- 1...Qe4
- 2.axb4#
- 1...Qe1
- 2.axb4#
- 1...Qg1
- 2.axb4#
- 1...Rg3
- 2.Sxe6#
- 1...Rg4
- 2.Sxe6#
- 1...Bg5
- 2.Bxd6#
- 1...Sc2
- 2.Rc6#
- 2.Qc6#
- 1...Sd5
- 2.Rc6#
- 1...d5!
- threat
- 1.Qf4?
- threat
- 2.Rb5#
- 2.Qe3#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa7
- 2.Qe3#
- 1...Rxb8
- 2.Qe3#
- 1...Bxc4
- 2.Qxc4#
- 1...Sxa6
- 2.Rc6#
- 1...exf4
- 2.d4#
- 1...Qd3
- 2.Rb5#
- 2.axb4#
- 2.cxb4#
- 1...Qe4
- 2.axb4#
- 1...Qe1
- 2.Rb5#
- 2.axb4#
- 2.cxb4#
- 1...Qg1
- 2.Rb5#
- 2.axb4#
- 2.cxb4#
- 1...Rg3
- 2.Sxe6#
- 2.Rb5#
- 1...Rg4
- 2.Sxe6#
- 2.Rb5#
- 1...Bd7
- 2.Sxd7#
- 2.Qe3#
- 1...Bg5
- 2.Bxd6#
- 2.Rb5#
- 1...Bd8
- 2.Bxd6#
- 2.Qe3#
- 1...Sa2
- 2.Rc6#
- 2.Qe3#
- 1...Sc2
- 2.Rc6#
- 1...Sd3
- 2.Rc6#
- 2.Qe3#
- 1...Sd5
- 2.Rc6#
- 1...e4
- 2.Qe3#
- 1...d5
- 2.Rb5#
- 1...Sxf4!
- threat
- 1.Qxe6?
- Keys
- 1.Rh5!
- threat
- 2.d4#
- 1...Sc6+
- 2.Rxc6#
- 1...Sxa6
- 2.Rc6#
- 1...Qd3
- 2.axb4#
- 1...Qe4
- 2.axb4#
- 1...Qf5
- 2.axb4#
- 1...Qd1
- 2.axb4#
- 1...Qg1
- 2.axb4#
- 1...Rg4
- 2.Sxe6#
- 1...Rg5
- 2.Sxe6#
- 1...Bd5
- 2.Sd7#
- 1...Bf5
- 2.Rb5#
- 1...Bg5
- 2.Bxd6#
- 1...Sg5
- 2.Qf2#
- 1...Sc2
- 2.Rc6#
- 1...Sd3
- 2.Rc6#
- 1...Sd5
- 2.Rc6#
- 1...d5
- 2.Qxe7#
- threat
- 1.Rh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 19
- Sets
- Q(a);N_GUARD::P(B),XS(c)
- R(h);N_GUARD::S(L),XB(g)
- B(g);::R1(G)
- B(g);N_GUARD::S(L)
- B(g);N_GUARD::S(L),XB(g)
- B(g);N_GUARD,XQ(I)::S(L)
- B(i);N_GUARD::B(K),XP(f)
- B(i);N_GUARD,P_PINR(G)::B(K),XP(f)
- S(b);N_GUARD::QAB(I)
- S(b);N_GUARD::QAB(I),XS(b)
- S(c);N_GUARD::R1(G)
- S(c);N_GUARD,XB(F)::R1(G)
- S(c);CHECK,N_GUARD::R1(G),XS(c)
- P(f);OGATEB::QAB(I),XB(i)
- Tries
- Try
- Q(I);XB(g)
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,N_GUARD::R1(G),XS(c)
- R(j);XB(K)::S(L)
- B(i);XS(L)::R1(G)
- P(f);::S(L)
- Refutation
- R(j);P_PINB(F),XS(H)
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- B(g);N_GUARD::S(L),XB(g)
- Refutation
- B(g);XP(D)
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- B(g);N_GUARD,XP(D)::S(L)
- Q(a);N_GUARD::P(B),XS(c)
- R(h);N_GUARD::S(L),XB(g)
- B(i);N_GUARD::B(K),XP(f)
- S(c);N_GUARD::R1(G)
- Refutation
- P(f);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,N_GUARD::R1(G),XS(c)
- R(j);P_PINB(F),XS(H)::QAB(I)
- R(j);XB(K)::QAB(I)
- B(g);OGATE,XP(D)::QAR1(I),XB(g)
- S(c);N_GUARD,XB(F)::R1(G)
- P(e);N_GUARD,XQ(I)::P(A)
- Q(a);N_GUARD::P(B),XS(c)
- S(c);N_GUARD::R1(G)
- P(e);::QAB(I)
- P(f);::R1(G)
- Refutation
- S(b);XQ(I)
- Try
- Actual
- R(J);P_PINP(e)
- Threat
- P(A)
- Vars
- S(c);CHECK,N_GUARD::R1(G),XS(c)
- S(c);N_GUARD,XB(F)::R1(G)
- Q(a);N_GUARD::P(B),XS(c)
- Q(a);N_GUARD,N_SPINP(e)::P(B),XS(c)
- R(h);N_GUARD::S(L),XB(g)
- R(h);N_GUARD,N_SPINP(e)::S(L),XB(g)
- B(g);N_GUARD,N_SPINP(e)::S(L)
- B(g);N_SPINP(e)::R1(G)
- B(i);N_GUARD,N_SPINP(e)::B(K),XP(f)
- S(b);N_GUARD,N_SPINP(e)::QAB(I)
- S(c);N_GUARD::R1(G)
- S(c);N_GUARD,N_SPINP(e)::R1(G)
- P(f);N_SPINP(e),OGATEB::QAB(I),XB(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).