MESON Chess Problem Database
Problem Display
PID: 52731 (3R4/8/1N1N1n2/r2p2rp/1BPk1p1P/8/3PQ1p1/1B4K1 w - - 0 1)
Korenev, Valery Ivanovich
Subota, Nikolai
Schach-Aktiv, 2004
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Ra3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Rc5
- 2.Bc3#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Rg3
- 2.Sf5#
- 1...Rg4
- 2.Sf5#
- 1...Re5
- 2.Qd3#
- 1...Rf5
- 2.Sxf5#
- 1...Rg6
- 2.Sf5#
- 1...Rg7
- 2.Sf5#
- 1...Rg8
- 2.Sf5#
- 1...f3
- 2.Qe3#
- 1...dxc4
- 2.Sb5#
- 2.Sf5#
- 1...Ra1
- Tries
- 1.Sa4?
- threat
- 2.Bc3#
- 1...Rxa4
- 2.Sb5#
- 1...dxc4
- 2.Sb5#
- 2.Sf5#
- 1...Rg3
- 2.Sf5#
- 1...Se4!
- threat
- 1.Sd7?
- threat
- 2.Bc3#
- 2.Qd3#
- 2.Qf2#
- 1...dxc4
- 2.Qxc4#
- 1...Ra3
- 2.Sb5#
- 2.Bc5#
- 1...Rg3
- 2.Sf5#
- 2.Qe5#
- 1...Re5
- 2.Bc3#
- 2.Qd3#
- 2.Qxe5#
- 1...Se4
- 2.Qd3#
- 1...Sg4
- 2.Bc3#
- 2.Qd3#
- 1...Sxd7!
- threat
- 1.Sb7?
- threat
- 2.Bc3#
- 1...Se4
- 2.Qxe4#
- 1...Ra3
- 2.Bc5#
- 1...Rg3!
- threat
- 1.Sf7?
- threat
- 2.Qd3#
- 2.Qf2#
- 1...Sg4
- 2.Qd3#
- 2.Qe4#
- 1...Rg3
- 2.Qe5#
- 1...Re5
- 2.Qd3#
- 2.Qxe5#
- 1...Se4
- 2.Qd3#
- 2.Qxe4#
- 1...Ra3!
- threat
- 1.Rc8?
- threat
- 2.Bc3#
- 1...Ra3
- 2.Sb5#
- 2.Bc5#
- 1...Rg3
- 2.Sf5#
- 1...Se4!
- threat
- 1.Re8?
- threat
- 2.Qd3#
- 2.Qf2#
- 1...dxc4
- 2.Qxc4#
- 2.Qf2#
- 1...Sg4
- 2.Qd3#
- 1...Ra3
- 2.Sb5#
- 1...Rg3
- 2.Sf5#
- 2.Qe5#
- 1...Re5
- 2.Qd3#
- 2.Qxe5#
- 1...Se4
- 2.Qd3#
- 1...Sxe8!
- threat
- 1.cxd5?
- 1...Raxd5
- 2.Sb5#
- 1...Rgxd5
- 2.Sf5#
- 1...Sxd5
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sg4
- 2.Qe4#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Ra3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Rg3
- 2.Sf5#
- 1...Rg4
- 2.Sf5#
- 1...Re5
- 2.Qd3#
- 2.Qc4#
- 1...Rf5
- 2.Sxf5#
- 1...Rg6
- 2.Sf5#
- 1...Rg7
- 2.Sf5#
- 1...Rg8
- 2.Sf5#
- 1...Sd7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Sg8
- 2.Qe4#
- 1...f3
- 2.Qe3#
- 1...Rc5!
- 1...Raxd5
- 1.Sa4?
- Keys
- 1.Sxd5!
- 1...Raxd5
- 2.Sb5#
- 1...Rgxd5
- 2.Sf5#
- 1...Sxd5
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Ra1
- 2.Sb5#
- 1...Ra2
- 2.Sb5#
- 1...Ra3
- 2.Sb5#
- 1...Ra4
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Rc5
- 2.Bc3#
- 1...Ra6
- 2.Sb5#
- 1...Ra7
- 2.Sb5#
- 1...Ra8
- 2.Sb5#
- 1...Rg3
- 2.Sf5#
- 1...Rg4
- 2.Sf5#
- 1...Re5
- 2.Qd3#
- 1...Rf5
- 2.Sxf5#
- 1...Rg6
- 2.Sf5#
- 1...Rg7
- 2.Sf5#
- 1...Rg8
- 2.Sf5#
- 1...Sg4
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Sg8
- 2.Qe4#
- 1...f3
- 2.Qe3#
- 1...Raxd5
- 1.Sxd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD,P_PINB(A)::S(I)
- R(d);N_GUARD::S(I)
- R(d);N_GUARD::S(I),XR(d)
- R(d);SBLOCK::B(E)
- R(f);N_GUARD::S(I)
- R(f);SBLOCK::QAR1(D)
- R(f);N_GUARD::S(I),XR(f)
- P(c);N_GUARD::QAB1(D)
- Tries
- Try
- S(H);
- Threat
- B(E)
- Vars
- R(d);N_GUARD,XS(H)::S(I)
- R(f);N_GUARD::S(I)
- Refutation
- S(h);
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- P(e);OGATE,XP(F)::QAR1(D),XP(e)
- S(h);::QAR1(D)
- Refutation
- S(h);XS(H)
- Try
- S(I);P_PINP(e)
- Threat
- B(E)
- Vars
- S(h);N_GUARD::QAR1(D),XS(h)
- R(d);N_GUARD::B(E)
- Refutation
- R(f);
- Try
- S(I);P_PINP(e)
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD::QAB1(D)
- Refutation
- R(d);
- Try
- R(J);
- Threat
- B(E)
- Vars
- R(f);N_GUARD::S(I)
- Refutation
- S(h);
- Try
- R(J);
- Threat
- DUALS(2)
- Vars
- S(h);::QAR1(D)
- R(d);N_GUARD::S(I)
- Refutation
- S(h);XR(J)
- Try
- P(F);XP(e)
- Vars
- R(d);N_GUARD,XP(F)::S(I)
- R(f);N_GUARD,XP(F)::S(I)
- S(h);N_GUARD,XP(F)::QAR1(D)
- S(h);N_GUARD::QAR1(D),XS(h)
- S(h);N_GUARD::QAR1(D)
- R(d);N_GUARD,P_PINB(A)::S(I)
- R(d);N_GUARD::S(I)
- R(d);N_GUARD::S(I),XR(d)
- R(f);N_GUARD::S(I)
- R(f);N_GUARD::S(I),XR(f)
- P(c);N_GUARD::QAB1(D)
- Refutation
- R(d);
- Try
- Actual
- S(H);XP(e)
- Vars
- R(d);N_GUARD,XS(H)::S(I)
- R(f);N_GUARD,XS(H)::S(I)
- S(h);N_GUARD,XS(H)::QAR1(D)
- S(h);N_GUARD::QAR1(D),XS(h)
- R(d);N_GUARD,P_PINB(A)::S(I)
- R(d);N_GUARD::S(I)
- R(d);N_GUARD::S(I),XR(d)
- R(d);SBLOCK::B(E)
- R(f);N_GUARD::S(I)
- R(f);SBLOCK::QAR1(D)
- R(f);N_GUARD::S(I),XR(f)
- S(h);N_GUARD::QAR1(D)
- P(c);N_GUARD::QAB1(D)
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).