MESON Chess Problem Database
Problem Display
PID: 81776 (b2r1N1B/4q3/5Ppp/R3nk2/7Q/4Pr2/BnNR4/1Kb5 w - - 0 1)
Petraitis, Vadim
Probleemblad, 2008
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qa3
- 2.Be6#
- 1...Qb4
- 2.Be6#
- 1...Qc5
- 2.Be6#
- 1...Qe6
- 2.Bxe6#
- 1...Qa7
- 2.Be6#
- 1...Qb7
- 2.Be6#
- 1...Qc7
- 2.Be6#
- 1...Qg7
- 2.Be6#
- 1...Qh7
- 2.Be6#
- 1...Rxe3
- 2.Sxe3#
- 1...Rg3
- 2.Qf4#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.e4#
- 1...Rb8
- 2.Sd4#
- 1...Rc8
- 2.Sd4#
- 1...Re8
- 2.Sd4#
- 1...Rxf8
- 2.Sd4#
- 1...Bd5
- 2.Sd4#
- 1...Qa3
- Tries
- 1.Bd5?
- threat
- 2.Sd4#
- 2.e4#
- 1...Rxe3
- 2.Sxe3#
- 2.Sd4#
- 1...Rxd5
- 2.e4#
- 1...Bxd5
- 2.Sd4#
- 1...Sed3
- 2.Be4#
- 2.Be6#
- 1...Sec4
- 2.Be4#
- 2.Be6#
- 1...Sc6
- 2.Be4#
- 2.Be6#
- 1...Sd7
- 2.Be4#
- 2.Be6#
- 1...Sf7
- 2.Be4#
- 2.Be6#
- 1...Qb4
- 2.Be6#
- 1...Qc5
- 2.Be6#
- 2.e4#
- 1...Qa7
- 2.Be6#
- 2.e4#
- 1...Rf4
- 2.Qxf4#
- 1...Sg4!
- threat
- 1.Rdd5?
- threat
- 2.Sd4#
- 2.e4#
- 1...Qxf8
- 2.Sd4#
- 2.Rxe5#
- 1...Rxe3
- 2.Sd4#
- 1...Rxd5
- 2.e4#
- 1...Rxf8
- 2.Sd4#
- 1...Bxd5
- 2.Sd4#
- 1...Rf4
- 2.Qxf4#
- 1...Qb4
- 2.Rxe5#
- 1...Qc5
- 2.e4#
- 1...Qa7
- 2.Rxe5#
- 2.e4#
- 1...Bxe3!
- threat
- 1.Rad5?
- threat
- 2.Sd4#
- 2.e4#
- 1...Qxf8
- 2.Sd4#
- 1...Rxe3
- 2.Sxe3#
- 2.Sd4#
- 1...Rxd5
- 2.e4#
- 1...Rxf8
- 2.Sd4#
- 1...Bxd5
- 2.Sd4#
- 1...Rf4
- 2.Qxf4#
- 1...Qc5
- 2.e4#
- 1...Qa7
- 2.e4#
- 1...Qb4!
- threat
- 1.fxe7?
- threat
- 2.Be6#
- 2.Rxe5#
- 1...Rxe3
- 2.Sxe3#
- 2.Be6#
- 1...Rxf8
- 2.Sd4#
- 2.Rxe5#
- 2.exf8Q#
- 2.exf8R#
- 1...Rf4
- 2.Rxe5#
- 2.Qxf4#
- 1...Rd5
- 2.e4#
- 1...Rd6
- 2.Rxe5#
- 1...Bd5
- 2.Sd4#
- 1...Sd3
- 2.Be6#
- 1...Sc4!
- threat
- 1.Bd5?
- Keys
- 1.Rg2!
- threat
- 2.Qg4#
- 1...Rf4
- 2.Qxf4#
- 1...Qb4
- 2.Be6#
- 1...Qc5
- 2.Be6#
- 1...Qg7
- 2.Be6#
- 1...Rg3
- 2.Qf4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.e4#
- 1...Bd5
- 2.Sd4#
- 1...h5
- 2.Rg5#
- threat
- 1.Rg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- Q(h);N_GUARD::B(B)
- Q(h);N_GUARD,N_SPINS(d)::B(B)
- Q(h);N_GUARD::B(B),XQ(h)
- R(c);XP(E)::S(C),XR(c)
- R(c);N_GUARD::QAR1(F)
- R(c);N_GUARD::QAR1(F),XR(c)
- R(j);N_GUARD::S(C),XR(j)
- R(j);N_SPINS(d),S_CUTB(i)::P(E)
- R(j);N_GUARD::S(C)
- R(j);N_GUARD,XS(I)::S(C)
- B(i);N_SPINS(d),S_CUTR(j)::S(C)
- Tries
- Try
- B(B);N_PINS(d)
- Threat
- DUALS(2)
- Vars
- R(j);XB(B)::P(E)
- B(i);XB(B)::S(C)
- Q(h);N_GUARD::B(B)
- R(c);N_GUARD::QAR1(F),XR(c)
- Refutation
- S(d);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- R(c);XP(E)::S(C)
- R(j);N_SPINS(d),XR(D)::P(E)
- R(j);XS(I)::S(C)
- B(i);N_SPINS(d),XR(D)::S(C)
- R(c);N_GUARD::QAR1(F),XR(c)
- Q(h);N_GUARD::R1(D),XS(d)
- Q(h);::P(E)
- Refutation
- B(a);XP(E)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- Q(h);XS(I)::S(C)
- R(j);N_SPINS(d),XR(G)::P(E)
- R(j);XS(I)::S(C)
- B(i);N_SPINS(d),XR(G)::S(C)
- R(c);N_GUARD::QAR1(F),XR(c)
- Q(h);::P(E)
- Refutation
- Q(h);
- Try
- P(H);XQ(h)
- Threat
- DUALS(2)
- Vars
- R(j);N_SPINS(d),S_CUTB(i)::P(E)
- R(j);::R1(G),XS(d)
- B(i);N_SPINS(d),S_CUTR(j)::S(C)
- S(b);::B(B)
- Refutation
- S(b);
- Try
- Actual
- R(D);
- Threat
- QAB1(F)
- Vars
- R(c);N_GUARD::QAR1(F),XR(c)
- Q(h);N_GUARD::B(B)
- Q(h);N_GUARD,N_SPINS(d)::B(B)
- R(c);N_GUARD::QAR1(F)
- R(j);N_GUARD::S(C),XR(j)
- R(j);N_SPINS(d),S_CUTB(i)::P(E)
- B(i);N_SPINS(d),S_CUTR(j)::S(C)
- P(g);N_GUARD::R1(D)
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).