MESON Chess Problem Database
Problem Display
PID: 138639 (7B/4nr2/6Nb/2R4r/2PPk1P1/KN6/np1QBP2/1q6 w - - 0 1)
Troianovski, Vladimir
Shakhmaty v SSSR, 1979
#2
11 + 8
| 3188 | Dutch Solving Championship | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.Qxc2#
- 1...Qd3
- 2.Qxd3#
- 1...Qa1
- 2.Qc2#
- 2.Qd3#
- 1...Qc1
- 2.Qd3#
- 1...Qe1
- 2.Qc2#
- 2.Qd3#
- 1...Qf1
- 2.Qc2#
- 2.Qd3#
- 1...Qg1
- 2.Qc2#
- 2.Qd3#
- 1...Qh1
- 2.Qc2#
- 2.Qd3#
- 1...Rh1
- 2.Re5#
- 1...Rh2
- 2.Re5#
- 1...Rh3
- 2.Re5#
- 1...Rh4
- 2.Re5#
- 1...Rxc5
- 2.Sxc5#
- 1...Re5
- 2.Rxe5#
- 1...Rg5
- 2.Qe3#
- 1...Rf4
- 2.Qe3#
- 1...Rg7
- 2.f3#
- 1...Rh7
- 2.f3#
- 1...Bxd2
- 2.Sxd2#
- 1...Be3
- 2.Qxe3#
- 1...Bf4
- 2.f3#
- 1...Bg5
- 2.Re5#
- 1...Bg7
- 2.Qe3#
- 1...Bf8
- 2.Qe3#
- 1...Sf5
- 2.Re5#
- 2.f3#
- 1...Qc2
- Tries
- 1.Sf4?
- threat
- 2.Qe3#
- 2.f3#
- 1...Rxf4
- 2.Qe3#
- 1...Bxf4
- 2.f3#
- 1...Qc1
- 2.f3#
- 1...Qf1
- 2.Qe3#
- 1...Qh1
- 2.Qe3#
- 1...Rh3
- 2.Re5#
- 1...Sd5
- 2.f3#
- 1...Sf5
- 2.Re5#
- 2.f3#
- 1...Qd3!
- threat
- 1.Rg5?
- threat
- 2.Sc5#
- 2.Qe3#
- 1...Rxg5
- 2.Qe3#
- 1...Rxf2
- 2.Sc5#
- 1...Bxg5
- 2.Sc5#
- 1...Qd3
- 2.Qxd3#
- 1...Qc1
- 2.Sc5#
- 2.Qd3#
- 1...Rh3
- 2.Re5#
- 1...Rf5
- 2.Qe3#
- 1...Sd5
- 2.Sc5#
- 1...Sf5
- 2.Sc5#
- 2.Qf4#
- 2.f3#
- 1...Rf3!
- threat
- 1.Rxh5?
- threat
- 2.Sc5#
- 2.Re5#
- 1...Sxg6
- 2.Sc5#
- 1...Rf3
- 2.Re5#
- 1...Qd3
- 2.Re5#
- 2.Qxd3#
- 1...Bf4
- 2.Sc5#
- 2.f3#
- 1...Bg5
- 2.Sc5#
- 1...Bg7
- 2.Sc5#
- 2.Qe3#
- 1...Sf5
- 2.Sc5#
- 2.f3#
- 1...Sc6
- 2.Sc5#
- 1...Rf5!
- threat
- 1.Qf4+?
- 1...Rxf4
- 2.Sd2#
- 1...Bxf4!
- 1...Rxf4
- 1.g5?
- threat
- 2.Re5#
- 2.Qe3#
- 1...Rxg5
- 2.Qe3#
- 1...Rxf2
- 2.Re5#
- 1...Bxg5
- 2.Re5#
- 1...Sxg6
- 2.Qe3#
- 1...Rf3
- 2.Re5#
- 1...Qd3
- 2.Re5#
- 2.Qxd3#
- 1...Qc1
- 2.Re5#
- 2.Qd3#
- 1...Rh3
- 2.Re5#
- 1...Rf5
- 2.Qe3#
- 1...Bg7
- 2.Qe3#
- 1...Sf5
- 2.Re5#
- 2.Qf4#
- 2.f3#
- 1...Sc6
- 2.Qe3#
- 1...Sd5!
- threat
- 1.Sf4?
- Keys
- 1.Qg5!
- threat
- 2.Sd2#
- 2.Re5#
- 1...Rxg5
- 2.Sd2#
- 1...Bxg5
- 2.Re5#
- 1...Sxg6
- 2.Sd2#
- 1...Rf3
- 2.Re5#
- 1...Qc2
- 2.Re5#
- 1...Qd3
- 2.Re5#
- 1...Qc1
- 2.Re5#
- 1...Qd1
- 2.Re5#
- 1...Qe1
- 2.Re5#
- 1...Rh3
- 2.Re5#
- 2.Qe5#
- 1...Rf5
- 2.Sd2#
- 1...Rf6
- 2.Re5#
- 1...Rg7
- 2.Re5#
- 2.f3#
- 1...Bg7
- 2.Qe3#
- 1...Sd5
- 2.Sd2#
- 1...Sc6
- 2.Sd2#
- threat
- 1.Qg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 8
- REMOVED MATES = 13
- Sets
- Q(a);N_GUARD::QAB(A),XQ(a)
- Q(a);N_GUARD,P_PINS(E)::QAB1(A),XQ(a)
- Q(a);N_GUARD::QAB1(A)
- R(e);N_GUARD::R1(I)
- R(e);N_GUARD,P_PINS(E)::R1(I)
- R(e);XR(I)::S(E),XR(e)
- R(e);N_GUARD::R1(I),XR(e)
- R(e);S_CUTB(f)::QAR1(A)
- R(h);S_CUTB(f)::QAR1(A)
- R(h);N_GUARD::P(C)
- B(f);XQ(A)::S(E),XB(f)
- B(f);N_GUARD::QAR1(A),XB(f)
- B(f);S_CUTR(h)::P(C)
- B(f);S_CUTR(e)::R1(I)
- B(f);N_GUARD::QAR1(A)
- Tries
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- R(h);XS(J)::QAR1(A)
- B(f);XS(J)::P(C)
- Q(a);::P(C)
- Q(a);::QAR1(A)
- R(e);N_GUARD,P_PINS(E)::R1(I)
- S(g);::P(C)
- Refutation
- Q(a);P_PINS(E)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(e);XR(I)::QAR1(A)
- R(h);XP(C)::S(E)
- B(f);XR(I)::S(E)
- Q(a);N_GUARD,P_PINS(E)::QAB1(A),XQ(a)
- R(e);N_GUARD,P_PINS(E)::R1(I)
- R(h);::QAR1(A)
- S(g);::S(E)
- Refutation
- R(h);P_PINS(E)
- Try
- R(I);XR(e)
- Threat
- DUALS(2)
- Vars
- S(g);XS(J)::S(E)
- R(h);P_PINS(E)::R1(I)
- B(f);::S(E)
- S(g);::S(E)
- Refutation
- R(h);
- Try
- Q(A);CHECK
- Vars
- R(h);XQ(A)::S(E)
- Refutation
- B(f);XQ(A)
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- R(e);XP(H)::QAR1(A)
- R(h);XP(C)::R1(I)
- B(f);XP(H)::R1(I)
- S(g);XS(J)::QAR1(A)
- R(h);P_PINS(E)::R1(I)
- R(e);P_PINS(E)::R1(I)
- R(h);::QAR1(A)
- B(f);::QAR1(A)
- S(g);::QAR1(A)
- Refutation
- S(g);
- Try
- Actual
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(e);XQ(A)::S(E)
- B(f);XQ(A)::R1(I)
- S(g);XS(J)::S(E)
- R(h);P_PINS(E)::R1(I)
- Q(a);::R1(I)
- Q(a);P_PINS(E)::R1(I)
- R(h);::S(E)
- R(h);::R1(I)
- B(f);N_GUARD::QAR1(A)
- S(g);::S(E)
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).