MESON Chess Problem Database
Problem Display
PID: 276272 (KR3Q1r/1nN2B2/P2RP3/1Pk1N3/2P1P3/P6P/7B/1q6 w - - 0 1)
Tanic, Zivota
Mat, 1981
#2
15 + 4
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Bxg1#
- 1...Qb4
- 2.Bg1#
- 1...Qxb5
- 2.Bg1#
- 1...Sa5
- 2.Rd5#
- 1...Sd8
- 2.Rd5#
- 1...Qg1
- Tries
- 1.Se8?
- threat
- 2.Rc8#
- 1...Qxb5
- 2.Bg1#
- 1...Sxd6
- 2.Qxd6#
- 1...Sa5
- 2.Rd5#
- 1...Sd8
- 2.Rd5#
- 1...Qxe4!
- threat
- 1.Rd1+?
- 1...Rxf8
- 2.Bg1#
- 1...Sd6
- 2.Bg1#
- 2.Rd5#
- 2.Qxd6#
- 1...Kb6!
- 1...Rxf8
- 1.Rbd8?
- threat
- 2.Rc6#
- 1...Sxd6
- 2.Qxd6#
- 1...Sxd8!
- threat
- 1.axb7?
- threat
- 2.Sa6#
- 1...Qxb5
- 2.Bg1#
- 1...Rxf8!
- threat
- 1.Se8?
- Keys
- 1.e7!
- threat
- 2.Sd7#
- 1...Kxd6
- 2.e8S#
- 1...Qxb5
- 2.Sd3#
- 1...Sxd6
- 2.Se6#
- threat
- 1.e7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- Q(a);N_GUARD::B(A),XQ(a)
- Q(a);N_GUARD::B(A)
- Q(a);N_GUARD,XP(F)::B(A)
- S(c);::QAB(O)+R(I),DCHECK
- Tries
- Try
- S(K);
- Threat
- R(N)
- Vars
- Q(a);N_GUARD,XP(F)::B(A)
- S(c);OGATE,P_SPINS(c),XR(I)::QAB1(O),XS(c)
- S(c);::QAB(O)+R(I),DCHECK
- Refutation
- Q(a);XP(E)
- Try
- R(I);CHECK
- Vars
- R(d);P_PINR(N),XQ(O)::B(A)
- Refutation
- K(b);P_SPINS(c),S_FLIGHT
- Try
- R(N);
- Threat
- QAB(O)+R(I),DCHECK
- Vars
- S(c);OGATE,P_SPINS(c),XR(I)::QAB1(O),XS(c)
- Refutation
- S(c);XR(N)
- Try
- P(H);XS(c)
- Threat
- S(K)
- Vars
- Q(a);N_GUARD,XP(F)::B(A)
- Refutation
- R(d);P_PINR(N),XQ(O)
- Try
- Actual
- P(J);
- Threat
- S(G)
- Vars
- K(b);S_FLIGHT,XR(I)::P=S
- Q(a);N_GUARD,XP(F)::S(G)
- S(c);SBLOCK,XR(I)::S(K)
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).