MESON Chess Problem Database
Problem Display
PID: 163671 (3RKR2/8/8/2p1k3/1nPN1p1n/1p2p3/1P3N2/2Q5 w - - 0 1)
Zelepukhin, Nikolai Pavlovich
Novi Temi, 1973
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Rd5#
- 1...Sc2
- 2.Rd5#
- 1...Sd3
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sa6
- 2.Rd5#
- 1...Sc6
- 2.Rd5#
- 1...Sg2
- 2.Rf5#
- 1...Sf3
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sg6
- 2.Rf5#
- 1...exf2
- 2.Qxf4#
- 1...e2
- 2.Qxf4#
- 1...f3
- 2.Qxe3#
- 1...Sa2
- Tries
- 1.Rd7?
- 1...exf2
- 2.Qxf4#
- 1...Sd5
- 2.Rxd5#
- 1...Sa2
- 2.Rd5#
- 1...Sc2
- 2.Rd5#
- 1...Sd3
- 2.Rd5#
- 1...Sa6
- 2.Rd5#
- 1...Sc6
- 2.Rd5#
- 1...Sg2
- 2.Rf5#
- 1...Sf3
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sg6
- 2.Rf5#
- 1...e2
- 2.Qxf4#
- 1...f3
- 2.Qxe3#
- 1...cxd4!
- 1...exf2
- 1.Rf7?
- 1...exf2
- 2.Qxf4#
- 1...Sd5
- 2.Rxd5#
- 1...Sa2
- 2.Rd5#
- 1...Sc2
- 2.Rd5#
- 1...Sd3
- 2.Rd5#
- 1...Sa6
- 2.Rd5#
- 1...Sc6
- 2.Rd5#
- 1...Sg2
- 2.Rf5#
- 1...Sf3
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sg6
- 2.Rf5#
- 1...e2
- 2.Qxf4#
- 1...f3
- 2.Qxe3#
- 1...cxd4!
- 1...exf2
- 1.Qb1?
- threat
- 2.Sg4#
- 2.Qe4#
- 1...cxd4
- 2.Qe4#
- 1...Sd5
- 2.Rxd5#
- 2.Qe4#
- 1...Sc2
- 2.Rd5#
- 1...Sd3
- 2.Rd5#
- 1...exf2!
- threat
- 1.Qe1?
- 1...Sd5
- 2.Rxd5#
- 1...Sa2
- 2.Rd5#
- 1...Sc2
- 2.Rd5#
- 1...Sd3
- 2.Rd5#
- 1...Sa6
- 2.Rd5#
- 1...Sc6
- 2.Rd5#
- 1...Sg2
- 2.Rf5#
- 1...Sf3
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sg6
- 2.Rf5#
- 1...e2
- 2.Qxe2#
- 1...f3
- 2.Qxe3#
- 1...cxd4!
- 1...Sd5
- 1.Qh1?
- threat
- 2.Sg4#
- 2.Qe4#
- 1...cxd4
- 2.Qe4#
- 1...Sd5
- 2.Rxd5#
- 2.Qe4#
- 2.Qxd5#
- 1...f3
- 2.Qh2#
- 1...Sg2
- 2.Rf5#
- 2.Qh5#
- 2.Qh8#
- 1...Sf3
- 2.Rf5#
- 2.Qh8#
- 1...exf2!
- threat
- 1.Qc2?
- threat
- 2.Sg4#
- 2.Qe4#
- 1...Sxc2
- 2.Rd5#
- 1...exf2
- 2.Qe2#
- 1...cxd4
- 2.Qe4#
- 1...Sd5
- 2.Rxd5#
- 2.Qe4#
- 1...Sd3
- 2.Rd5#
- 1...bxc2!
- threat
- 1.Rd7?
- Keys
- 1.Kd7!
- 1...Kxd4
- 2.Qc3#
- 1...exf2
- 2.Qxf4#
- 1...cxd4
- 2.Rde8#
- 1...Sa2
- 2.Sc6#
- 1...Sc2
- 2.Sc6#
- 1...Sd3
- 2.Sc6#
- 1...Sd5
- 2.Sc6#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sg2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sf5
- 2.Sf3#
- 1...Sg6
- 2.Sf3#
- 1...e2
- 2.Qxf4#
- 1...f3
- 2.Qxe3#
- 1...Kxd4
- 1.Kd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 10
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::R1(F)
- S(c);N_GUARD::R1(F),XS(c)
- S(e);N_GUARD::R1(H)
- S(e);N_GUARD::R1(H),XS(e)
- P(b);OGATE,XS(C)::QAB1(A),XP(d)
- P(b);OGATE::QAB1(A),XP(d)
- P(d);N_GUARD::QAR2(A),XP(b)
- Tries
- Try
- R(F);
- Vars
- P(b);OGATE,XS(C)::QAB1(A),XP(d)
- S(c);N_GUARD::R1(F),XS(c)
- S(c);N_GUARD::R1(F)
- S(e);N_GUARD::R1(H)
- S(e);N_GUARD::R1(H),XS(e)
- P(b);OGATE::QAB1(A),XP(d)
- P(d);N_GUARD::QAR2(A),XP(b)
- Refutation
- P(f);XS(E)
- Try
- R(H);
- Vars
- P(b);OGATE,XS(C)::QAB1(A),XP(d)
- S(c);N_GUARD::R1(F),XS(c)
- S(c);N_GUARD::R1(F)
- S(e);N_GUARD::R1(H)
- S(e);N_GUARD::R1(H),XS(e)
- P(b);OGATE::QAB1(A),XP(d)
- P(d);N_GUARD::QAR2(A),XP(b)
- Refutation
- P(f);XS(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(f);XS(E)::QAR1(A)
- S(c);N_GUARD::R1(F)
- Refutation
- P(b);XS(C)
- Try
- Q(A);P_PINP(b)
- Vars
- S(c);N_GUARD::R1(F),XS(c)
- S(c);N_GUARD::R1(F)
- S(e);N_GUARD::R1(H)
- S(e);N_GUARD::R1(H),XS(e)
- P(b);OGATEB::QAR(A),XP(b)
- P(d);N_GUARD::QAR2(A),XP(b)
- Refutation
- P(f);XS(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(f);XS(E)::QAR1(A)
- P(d);OGATEB::QAB(A)
- Refutation
- P(b);XS(C)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,XQ(A)::R1(F)
- P(b);OGATEB,XS(C)::QAR(A)
- P(f);XS(E)::QAR1(A)
- S(c);N_GUARD::R1(F)
- Refutation
- P(a);XQ(A)
- Try
- Actual
- K(G);S_FLIGHT
- Vars
- K(g);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
- P(b);OGATE,XS(C)::QAB1(A),XP(d)
- P(f);SBLOCK,XS(E)::R(F)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(e);N_GUARD::S(E)
- S(e);N_GUARD::S(E),XS(e)
- P(b);OGATE::QAB1(A),XP(d)
- P(d);N_GUARD::QAR2(A),XP(b)
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).