MESON Chess Problem Database
Problem Display
PID: 186750 (1B6/3p4/2prp1Rp/Q7/3N1kn1/R5NP/5PK1/b2b4 w - - 0 1)
Kovacevic, Marjan
2nd Prize, Troll, 2017-2018
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Bc2
- 2.Sde2#
- 2.Rf3#
- 2.Rxg4#
- 1...Be2
- 2.Sdxe2#
- 1...Bb3
- 2.Sde2#
- 2.Rxg4#
- 1...Bf3+
- 2.Rxf3#
- 1...Ba4
- 2.Sde2#
- 2.Rf3#
- 2.Rxg4#
- 1...Sxf2
- 2.Rf6#
- 1...Sh2
- 2.Rf6#
- 1...Se3+
- 2.fxe3#
- 1...Se5
- 2.Qd2#
- 1...Sf6
- 2.Rxf6#
- 1...h5
- 2.Qg5#
- 1...Bc2
- Tries
- 1.Sge2+?
- 1...Ke4
- 2.Rxg4#
- 2.f3#
- 1...Bxe2!
- 1...Ke4
- 1.Bxd6+?
- 1...Se5
- 2.Bxe5#
- 2.Qd2#
- 2.Qxe5#
- 1...e5!
- 1...Se5
- 1.Re3?
- threat
- 2.Sh5#
- 2.Re4#
- 1...Bf3+
- 2.Rxf3#
- 1...Sxf2
- 2.Qe5#
- 1...Bc2
- 2.Sge2#
- 2.Sh5#
- 2.Sde2#
- 2.Rf3#
- 2.Rxg4#
- 1...Sh2
- 2.Re4#
- 2.Rf6#
- 2.Qe5#
- 1...Se5
- 2.Re4#
- 2.Qxe5#
- 1...Sf6
- 2.Rxf6#
- 2.Qe5#
- 1...h5
- 2.Sxh5#
- 2.Re4#
- 2.Qg5#
- 1...Sxe3+!
- threat
- 1.Rxe6?
- threat
- 2.Sh5#
- 2.Re4#
- 2.Qf5#
- 1...Bf3+
- 2.Rxf3#
- 1...Se3+
- 2.fxe3#
- 1...Sxf2
- 2.Bxd6#
- 2.Rf6#
- 2.Qd2#
- 2.Qe5#
- 2.Qf5#
- 1...dxe6
- 2.Sxe6#
- 1...Se5
- 2.Qd2#
- 2.Qxe5#
- 1...Bc2
- 2.Sge2#
- 2.Sh5#
- 2.Sde2#
- 2.Rf3#
- 1...Sh2
- 2.Bxd6#
- 2.Re4#
- 2.Rf6#
- 2.Qd2#
- 2.Qe5#
- 2.Qf5#
- 1...Sf6
- 2.Bxd6#
- 2.Rxf6#
- 2.Qd2#
- 2.Qe5#
- 2.Qf5#
- 1...h5
- 2.Sxh5#
- 2.Re4#
- 2.Qf5#
- 1...c5!
- threat
- 1.Qe1?
- threat
- 2.Sh5#
- 2.Qe4#
- 1...Bf3+
- 2.Rxf3#
- 1...Se3+
- 2.Qxe3#
- 1...Bxd4
- 2.Qe4#
- 1...Sxf2
- 2.Qe3#
- 1...Bc2
- 2.Sh5#
- 2.Rf3#
- 2.Rxg4#
- 1...Sh2
- 2.Qe3#
- 2.Qe4#
- 1...Se5
- 2.Qd2#
- 2.Qe3#
- 2.Qe4#
- 1...Sf6
- 2.Qe3#
- 1...h5
- 2.Sxh5#
- 2.Qe4#
- 1...Be2!
- threat
- 1.Qd2+?
- 1...Se3+
- 2.Qxe3#
- 1...Ke5!
- 1...Se3+
- 1.Sge2+?
- Keys
- 1.Sf3!
- threat
- 2.Rxg4#
- 1...Bxf3+
- 2.Rxf3#
- 1...Se3+
- 2.fxe3#
- 1...Sxf2
- 2.Qd2#
- 1...Sh2
- 2.Qd2#
- 1...Se5
- 2.Rf6#
- 1...Sf6
- 2.Qd2#
- 1...h5
- 2.Qg5#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD::S(F),XB(b)
- B(b);CHECK,N_GUARD::R1(C),XB(b)
- S(d);N_GUARD,XP(A)::R(H)
- S(d);N_GUARD::R(H)
- S(d);CHECK,OGATE::P(A),XS(d)
- S(d);N_GUARD,N_SPINR(f),SBLOCK::QAB(G)
- S(d);N_GUARD::R(H),XS(d)
- P(h);N_GUARD::QAB1(G)
- Tries
- Try
- S(D);CHECK
- Refutation
- B(b);XS(D)
- Try
- B(I);CHECK,XR(f)
- Refutation
- P(g);P_SPINP(g)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::R1(C),XB(b)
- S(d);N_GUARD,XP(A)::QAB1(G)
- Refutation
- S(d);CHECK,XR(C)
- Try
- R(H);XP(g)
- Threat
- DUALS(3)
- Vars
- B(b);CHECK,N_GUARD::R1(C),XB(b)
- S(d);CHECK,OGATE::P(A),XS(d)
- P(i);XR(H)::S(F),XP(i)
- Refutation
- P(e);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::R1(C),XB(b)
- S(d);CHECK,N_GUARD::QAB1(G),XS(d)
- B(a);XS(F)::QAR1(G)
- S(d);N_GUARD,XP(A)::QAB1(G)
- S(d);N_GUARD::QAB1(G)
- Refutation
- B(b);
- Try
- Q(G);CHECK
- Vars
- S(d);CHECK,N_GUARD,P_SPINS(d)::QAB1(G),XS(d)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- S(F);
- Threat
- R1(H),XS(d)
- Vars
- B(b);CHECK,OGATE,XS(F)::R1(C),XB(b)
- S(d);CHECK,OGATE::P(A),XS(d)
- S(d);N_GUARD,XP(A)::QAB(G)
- S(d);N_GUARD::QAB(G)
- S(d);N_GUARD,N_SPINR(f),S_CUTB(a)::R(H)
- P(h);N_GUARD::QAB1(G)
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).