MESON Chess Problem Database
Problem Display
PID: 62938 (1B3R2/1n6/2QPP2R/2n1k1N1/6p1/1p6/1p1P1p2/1K3B2 w - - 0 1)
Lobusov, Andrey Jakovlevic
Schweizer Schach-Magazin, 1991
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sxe6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...Sd8
- 2.Qxc5#
- 1...g3
- 2.Sf3#
- 1...Sd3
- Tries
- 1.Ba7?
- 1...Kd4
- 2.Qe4#
- 1...Sxe6
- 2.Rxe6#
- 1...Sxd6
- 2.Qxc5#
- 1...Sa4
- 2.d4#
- 1...Se4
- 2.d4#
- 1...Sa6
- 2.d4#
- 1...Sd7
- 2.d4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...g3
- 2.Sf3#
- 1...Sd3!
- 1...Kd4
- 1.Bc7?
- 1...Sxe6
- 2.Qe4#
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...g3
- 2.Sf3#
- 1...Kd4!
- 1...Sxe6
- 1.Rhf6?
- 1...Sxe6
- 2.Qe4#
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...g3
- 2.Sf3#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...Kd4!
- 1...Sxe6
- 1.Rg6?
- 1...Sxe6
- 2.Qe4#
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...g3
- 2.Sf3#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...Kd4!
- 1...Sxe6
- 1.Rf5+?
- 1...Kd4
- 2.Rd5#
- 2.Qd5#
- 1...Kxf5!
- 1...Kd4
- 1.Rff6?
- 1...Sxe6
- 2.Qe4#
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...g3
- 2.Sf3#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...Kd4!
- 1...Sxe6
- 1.Rf7?
- 1...Sxe6
- 2.Qe4#
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...g3
- 2.Sf3#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...Kd4!
- 1...Sxe6
- 1.d3?
- 1...Sxd3
- 2.Qe4#
- 1...Sxe6
- 2.Qe4#
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...g3
- 2.Sf3#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...Kd4!
- 1...Sxd3
- 1.d7+?
- 1...Sd6
- 2.Qxc5#
- 2.Qxd6#
- 1...Kd4!
- 1...Sd6
- 1.e7?
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...g3
- 2.Sf3#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Se6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...Kd4!
- 1...Sxd6
- 1.Ba7?
- Keys
- 1.Rh4!
- 1...Kd4
- 2.Sf3#
- 1...Sxe6
- 2.Qe4#
- 1...Sxd6
- 2.Qxc5#
- 2.Qxd6#
- 1...g3
- 2.d4#
- 1...Sd3
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sa6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sa5
- 2.Qxc5#
- 1...Sd8
- 2.Qxc5#
- 1...Kd4
- 1.Rh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(e);N_GUARD,XP(G)::QAR1(E)
- S(g);N_GUARD::QAR2(E),XS(e)
- P(d);N_GUARD::S(D)
- Tries
- Try
- B(I);
- Vars
- K(f);P_SPINS(e),S_FLIGHT::QAR1(E)
- S(e);OGATE,XP(G)::R1(H),XS(e)
- S(g);N_GUARD,XP(F)::QAR2(E),XS(e)
- S(e);::P(C)
- S(g);N_GUARD::QAR2(E),XS(e)
- P(d);N_GUARD::S(D)
- Refutation
- S(e);
- Try
- B(I);
- Vars
- S(e);N_GUARD,XP(G)::QAR1(E)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(g);N_GUARD::QAR2(E),XS(e)
- P(d);N_GUARD::S(D)
- Refutation
- K(f);S_FLIGHT
- Try
- R(H);
- Vars
- S(e);N_GUARD,XP(G)::QAR1(E)
- P(d);N_GUARD::S(D)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(g);N_GUARD::QAR2(E),XS(e)
- Refutation
- K(f);S_FLIGHT
- Try
- R(H);
- Vars
- S(e);N_GUARD,XP(G)::QAR1(E)
- P(d);N_GUARD::S(D)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(g);N_GUARD::QAR2(E),XS(e)
- Refutation
- K(f);S_FLIGHT
- Try
- R(J);CHECK
- Refutation
- K(f);P-FLIGHT,XR(J)
- Try
- R(J);
- Vars
- S(e);N_GUARD,XP(G)::QAR1(E)
- P(d);N_GUARD::S(D)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(g);N_GUARD::QAR2(E),XS(e)
- Refutation
- K(f);S_FLIGHT
- Try
- R(J);
- Vars
- S(e);N_GUARD,XP(G)::QAR1(E)
- P(d);N_GUARD::S(D)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(g);N_GUARD::QAR2(E),XS(e)
- Refutation
- K(f);S_FLIGHT
- Try
- P(C);
- Vars
- S(e);N_GUARD,XP(C)::QAR1(E)
- S(e);N_GUARD,XP(G)::QAR1(E)
- P(d);N_GUARD::S(D)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(g);N_GUARD::QAR2(E),XS(e)
- Refutation
- K(f);S_FLIGHT
- Try
- P(F);CHECK
- Refutation
- K(f);S_FLIGHT
- Try
- P(G);
- Vars
- P(d);N_GUARD::S(D)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(g);N_GUARD::QAR2(E),XS(e)
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- R(H);
- Vars
- K(f);P_SPINP(d),S_FLIGHT::S(D)
- S(e);N_GUARD,XP(G)::QAR1(E)
- P(d);::P(C)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(g);N_GUARD::QAR2(E),XS(e)
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).