MESON Chess Problem Database
Problem Display
PID: 74938 (1B6/8/4B2r/1p2R3/qn1kN1np/pp1P2pK/N1P2rP1/b3QR2 w - - 0 1)
Janevski, Zivko
Problem Online, 2006
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Sxa2
- 2.Rd5#
- 1...Sxc2
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sa6
- 2.Rd5#
- 1...Sc6
- 2.Rd5#
- 1...Sxa2
- Tries
- 1.Sd2?
- threat
- 2.Qe4#
- 1...Sxe5
- 2.Qxe5#
- 1...bxa2
- 2.Qxa1#
- 1...Sd5
- 2.Rxd5#
- 1...Qa8
- 2.Sxb3#
- 1...Re2
- 2.Sf3#
- 1...Rf4
- 2.Rxf4#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qe3#
- 1...Sxa2!
- threat
- 1.Sxf2?
- threat
- 2.Qe4#
- 1...Sxa2
- 2.Rd5#
- 1...Sxe5
- 2.Qxe5#
- 1...bxa2
- 2.Qxa1#
- 1...Sd5
- 2.Rxd5#
- 1...Qa8
- 2.Qxb4#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qe3#
- 1...Sxf2+!
- threat
- 1.Sec3?
- threat
- 2.Qe4#
- 1...Sxa2
- 2.Rd5#
- 1...Sxe5
- 2.Qxe5#
- 1...Sd5
- 2.Rxd5#
- 1...Qa8
- 2.Sxb5#
- 1...Re2
- 2.Sxe2#
- 1...Rf4
- 2.Se2#
- 2.Rxf4#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qe3#
- 1...bxa2!
- threat
- 1.Sxg3?
- threat
- 2.Qe4#
- 1...Sxa2
- 2.Rd5#
- 1...Sxe5
- 2.Qxf2#
- 2.Qxe5#
- 1...bxa2
- 2.Qxa1#
- 1...Sd5
- 2.Rxd5#
- 1...Qa8
- 2.Qxb4#
- 1...Re2
- 2.Sxe2#
- 2.Sf5#
- 1...Rf4
- 2.Se2#
- 2.Rxf4#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qxf2#
- 2.Qe3#
- 1...hxg3+!
- threat
- 1.Sc5?
- threat
- 2.Qe4#
- 1...Sxa2
- 2.Rd5#
- 1...Sxe5
- 2.Qxe5#
- 1...bxa2
- 2.Qxa1#
- 1...Sd5
- 2.Rxd5#
- 1...Qa8
- 2.Sxb3#
- 2.Qxb4#
- 1...Rf4
- 2.Rxf4#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qe3#
- 1...Re2!
- threat
- 1.Sd6?
- threat
- 2.Qe4#
- 1...Sxa2
- 2.Rd5#
- 1...bxa2
- 2.Qxa1#
- 1...Re2
- 2.Sf5#
- 1...Sd5
- 2.Rxd5#
- 1...Se3
- 2.Qxe3#
- 1...Qa8
- 2.Sxb5#
- 1...Rf4
- 2.Rxf4#
- 1...Sf6
- 2.Qe3#
- 1...Sxe5!
- threat
- 1.Sf6?
- threat
- 2.Qe4#
- 1...Sxa2
- 2.Rd5#
- 1...Sxe5
- 2.Qxe5#
- 1...Sxf6
- 2.Qe3#
- 1...bxa2
- 2.Qxa1#
- 1...Sd5
- 2.Rxd5#
- 1...Qa8
- 2.Qxb4#
- 1...Rf4
- 2.Rxf4#
- 1...Se3
- 2.Qxe3#
- 1...Re2!
- threat
- 1.Sd2?
- Keys
- 1.Sg5!
- threat
- 2.Qe4#
- 1...Sxa2
- 2.Rd5#
- 1...Sxe5
- 2.Qxe5#
- 1...bxa2
- 2.Qxa1#
- 1...Sd5
- 2.Rxd5#
- 1...Qa8
- 2.Qxb4#
- 1...Re2
- 2.Sf3#
- 1...Rf4
- 2.Rxf4#
- 1...Se3
- 2.Qxe3#
- 1...Sf6
- 2.Qe3#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 3
- Sets
- S(g);N_GUARD,XS(C)::R1(I)
- S(g);N_GUARD,XP(D)::R1(I)
- S(g);N_GUARD::R1(I),XS(g)
- S(g);N_GUARD::R1(I)
- Tries
- Try
- S(H);
- Threat
- QAR1(A)
- Vars
- S(i);OGATE,XR(I)::QAB1(A),XS(i)
- P(d);N_GUARD,XS(C)::QAB(A),XB(a)
- S(g);N_GUARD::R1(I),XS(g)
- Q(f);N_GUARD::S(H),XP(d)
- R(b);N_GUARD::S(H)
- R(b);OGATE::R(B),XR(b)
- S(i);N_GUARD::QAB1(A),XS(i)
- S(i);N_GUARD::QAB1(A)
- Refutation
- S(g);XS(C)
- Try
- S(H);XR(b)
- Threat
- QAR1(A)
- Vars
- S(g);N_GUARD,XS(C)::R1(I)
- S(i);OGATE,XR(I)::QAB1(A),XS(i)
- P(d);N_GUARD,XS(C)::QAB(A),XB(a)
- S(g);N_GUARD::R1(I),XS(g)
- Q(f);N_GUARD::QAR2(A),XS(g)
- S(i);N_GUARD::QAB1(A),XS(i)
- S(i);N_GUARD::QAB1(A)
- Refutation
- S(i);CHECK,XS(H)
- Try
- S(H);
- Threat
- QAR1(A)
- Vars
- S(g);N_GUARD,XS(C)::R1(I)
- S(i);OGATE,XR(I)::QAB1(A),XS(i)
- S(g);N_GUARD::R1(I),XS(g)
- Q(f);N_GUARD::S(H),XP(k)
- R(b);N_GUARD::S(H),XR(b)
- S(i);N_GUARD::QAB1(A),XS(i)
- S(i);N_GUARD::QAB1(A)
- Refutation
- P(d);XS(C)
- Try
- S(H);XP(e)
- Threat
- QAR1(A)
- Vars
- S(g);N_GUARD,XS(C)::R1(I)
- P(d);N_GUARD,XS(C)::QAB(A),XB(a)
- S(g);N_GUARD::R1(I),XS(g)
- Q(f);N_GUARD::QAR2(A),XS(g)
- S(i);N_GUARD::QAB1(A),XS(i)
- Refutation
- P(j);CHECK,XS(H)
- Try
- S(H);
- Threat
- QAR1(A)
- Vars
- S(g);N_GUARD,XS(C)::R1(I)
- S(i);OGATE,XR(I)::QAB1(A),XS(i)
- P(d);N_GUARD,XS(C)::QAB(A),XB(a)
- S(g);N_GUARD::R1(I),XS(g)
- R(b);OGATE::R(B),XR(b)
- S(i);N_GUARD::QAB1(A),XS(i)
- S(i);N_GUARD::QAB1(A)
- Refutation
- R(b);
- Try
- S(H);
- Threat
- QAR1(A)
- Vars
- S(g);N_GUARD,XS(C)::R1(I)
- P(d);N_GUARD,XS(C)::QAB(A),XB(a)
- R(b);N_GUARD::S(H)
- S(g);N_GUARD::R1(I),XS(g)
- S(i);N_GUARD::QAB1(A),XS(i)
- Q(f);N_GUARD::S(H),XP(k)
- R(b);OGATE::R(B),XR(b)
- S(i);N_GUARD::QAB1(A)
- Refutation
- S(i);XR(I)
- Try
- S(H);
- Threat
- QAR1(A)
- Vars
- S(g);N_GUARD,XS(C)::R1(I)
- S(i);OGATE,XR(I)::QAB1(A),XS(i)
- S(i);N_GUARD,XS(H)::QAB1(A)
- P(d);N_GUARD,XS(C)::QAB(A),XB(a)
- S(g);N_GUARD::R1(I),XS(g)
- Q(f);N_GUARD::QAR2(A),XS(g)
- R(b);OGATE::R(B),XR(b)
- S(i);N_GUARD::QAB1(A),XS(i)
- Refutation
- R(b);
- Try
- Actual
- S(H);
- Threat
- QAR1(A)
- Vars
- S(g);N_GUARD,XS(C)::R1(I)
- S(i);OGATE,XR(I)::QAB1(A),XS(i)
- P(d);N_GUARD,XS(C)::QAB(A),XB(a)
- S(g);N_GUARD::R1(I),XS(g)
- Q(f);N_GUARD::QAR2(A),XS(g)
- R(b);N_GUARD::S(H)
- R(b);OGATE::R(B),XR(b)
- S(i);N_GUARD::QAB1(A),XS(i)
- S(i);N_GUARD::QAB1(A)
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).