MESON Chess Problem Database
Problem Display
PID: 197303 (2Bb3r/K1p2pR1/8/B4N1p/2N2k1p/3Q3n/2n2r1R/7b w - - 0 1)
Lukyanov, V?
Zadachi i Etyudi, 1996
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sd4
- 2.Qe3#
- 1...Sg5
- 2.Rxh4#
- 1...Sa1
- Tries
- 1.Sd4?
- threat
- 2.Qf5#
- 1...Sxd4
- 2.Qe3#
- 1...Bg5
- 2.Bxc7#
- 1...Se3
- 2.Qxe3#
- 1...Sg5
- 2.Rxh4#
- 1...f5
- 2.Se6#
- 2.Qxf5#
- 1...Be4!
- threat
- 1.Sxh4?
- threat
- 2.Qf5#
- 1...Be4
- 2.Qg3#
- 1...Bg5
- 2.Bxc7#
- 1...Se3
- 2.Qxe3#
- 1...Sd4
- 2.Qe3#
- 1...f5
- 2.Qxf5#
- 1...Sg5!
- threat
- 1.Sfd6?
- threat
- 2.Qf5#
- 1...Se3
- 2.Qxe3#
- 1...Be4
- 2.Qxe4#
- 1...Sd4
- 2.Qe3#
- 1...Sg5
- 2.Rxh4#
- 1...f5
- 2.Qxf5#
- 1...Bg5!
- threat
- 1.Sh6?
- threat
- 2.Qf5#
- 1...Se3
- 2.Qxe3#
- 1...Bg5
- 2.Bxc7#
- 1...Sd4
- 2.Qe3#
- 1...Sg5
- 2.Rxh4#
- 1...f5
- 2.Qxf5#
- 1...Be4!
- threat
- 1.Se7?
- threat
- 2.Qf5#
- 1...Se3
- 2.Qxe3#
- 1...Sd4
- 2.Qe3#
- 1...Sg5
- 2.Rxh4#
- 1...f5
- 2.Qxf5#
- 1...Be4!
- threat
- 1.Bd2+?
- 1...Se3
- 2.Qxe3#
- 1...Rxd2!
- 1...Se3
- 1.Rxf2+?
- 1...Bf3
- 2.Rxf3#
- 2.Qxf3#
- 1...Sxf2!
- 1...Bf3
- 1.Sd4?
- Keys
- 1.Sg3!
- threat
- 2.Qf5#
- 1...Se3
- 2.Qxe3#
- 1...Be4
- 2.Qxe4#
- 1...Bg5
- 2.Bxc7#
- 1...Sd4
- 2.Qe3#
- 1...Sg5
- 2.Rxh4#
- 1...f5
- 2.Qxf5#
- threat
- 1.Sg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- S(b);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(d);OGATE::R(A),XP(f)
- Tries
- Try
- S(E);
- Threat
- QAR1(B)
- Vars
- S(b);N_GUARD,XS(E)::QAB1(B)
- B(j);N_GUARD::B(D),XP(h)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(d);OGATE::R(A),XP(f)
- Refutation
- B(a);
- Try
- S(E);XP(f)
- Threat
- QAR1(B)
- Vars
- B(a);SBLOCK::QAB1(B)
- B(j);N_GUARD::B(D),XP(h)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(b);N_GUARD::QAB1(B)
- P(i);::QAR1(B),XP(i)
- Refutation
- S(d);
- Try
- S(E);
- Threat
- QAR1(B)
- Vars
- S(b);N_GUARD::QAB1(B),XS(b)
- B(a);N_GUARD::QAR1(B),XB(a)
- S(b);N_GUARD::QAB1(B)
- S(d);OGATE::R(A),XP(f)
- P(i);::QAR1(B),XP(i)
- Refutation
- B(j);
- Try
- S(E);
- Threat
- QAR1(B)
- Vars
- S(b);N_GUARD::QAB1(B),XS(b)
- B(j);N_GUARD::B(D),XP(h)
- S(b);N_GUARD::QAB1(B)
- S(d);OGATE::R(A),XP(f)
- P(i);::QAR1(B),XP(i)
- Refutation
- B(a);
- Try
- S(E);
- Threat
- QAR1(B)
- Vars
- S(b);N_GUARD::QAB1(B),XS(b)
- S(b);N_GUARD::QAB1(B)
- S(d);OGATE::R(A),XP(f)
- P(i);::QAR1(B),XP(i)
- Refutation
- B(a);
- Try
- B(D);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAB1(B),XS(b)
- Refutation
- R(c);XB(D)
- Try
- R(A);CHECK,XR(c)
- Refutation
- S(d);XR(A)
- Try
- Actual
- S(E);
- Threat
- QAR1(B)
- Vars
- S(b);N_GUARD::QAB1(B),XS(b)
- B(a);N_GUARD::QAR1(B),XB(a)
- B(j);N_GUARD::B(D),XP(h)
- S(b);N_GUARD::QAB1(B)
- S(d);OGATE::R(A),XP(f)
- P(i);::QAR1(B),XP(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).