MESON Chess Problem Database
Problem Display
PID: 247571 (8/Nn1p4/b4R2/1B3RB1/1K1kq2Q/1p1r1p2/1P6/2N5 w - - 0 1)
Sarkits, Anatoly L
Zadachi i Etyudi, 2003
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qxg4#
- 1...Rd1
- 2.Sxb3#
- 1...Rd2
- 2.Sxb3#
- 1...Rc3
- 2.bxc3#
- 1...Bxb5
- 2.Sxb5#
- 1...Sa5
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sd8
- 2.Rd6#
- 1...f2
- 2.Se2#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Qf4
- Tries
- 1.Bxd3?
- threat
- 2.Qxe4#
- 1...Bxd3
- 2.Sxb3#
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qf2#
- 2.Qxg4#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...d5
- 2.Sc6#
- 1...Qxh4!
- threat
- 1.Bxa6?
- threat
- 2.Sb5#
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qxg4#
- 1...Sd6
- 2.Rxd6#
- 1...Qxh4!
- threat
- 1.Bc6?
- threat
- 2.Rd5#
- 2.Qxe4#
- 1...dxc6
- 2.Sxc6#
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qxg4#
- 1...Re3
- 2.Rd5#
- 1...Bc4
- 2.Qxe4#
- 1...Sc5
- 2.Rd5#
- 2.Rd6#
- 1...Sd6
- 2.Rd5#
- 2.Rxd6#
- 1...d5
- 2.Rxd5#
- 1...Qxh4!
- threat
- 1.Bxd7?
- threat
- 2.Sc6#
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qxg4#
- 1...Rc3
- 2.bxc3#
- 1...Bb5
- 2.Sxb5#
- 1...Sa5
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Qxh4!
- threat
- 1.Rxa6?
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qxg4#
- 1...Rd1
- 2.Sxb3#
- 1...Rd2
- 2.Sxb3#
- 1...Rc3
- 2.bxc3#
- 1...Re3
- 2.Bf6#
- 1...Sa5
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sd8
- 2.Rd6#
- 1...f2
- 2.Se2#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Qxh4!
- 1...Qf4
- 1.Rb6?
- 1...Bxb5
- 2.Sxb5#
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qxg4#
- 1...Rd1
- 2.Sxb3#
- 1...Rd2
- 2.Sxb3#
- 1...Rc3
- 2.bxc3#
- 1...Re3
- 2.Bf6#
- 1...Sa5
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sd8
- 2.Rd6#
- 1...f2
- 2.Se2#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Qxh4!
- 1...Bxb5
- 1.Rc6?
- threat
- 2.Rc4#
- 1...Bxb5
- 2.Sxb5#
- 1...dxc6
- 2.Sxc6#
- 1...Qf4
- 2.Qxf4#
- 1...Rc3
- 2.bxc3#
- 1...Sa5
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...d5!
- threat
- 1.Re6?
- threat
- 2.Rxe4#
- 2.Qxe4#
- 1...dxe6
- 2.Sc6#
- 1...Qf4
- 2.Bf6#
- 2.Qxf4#
- 1...Qg4
- 2.Bf6#
- 2.Qxg4#
- 2.Qh8#
- 1...Re3
- 2.Bf6#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...d5
- 2.Sc6#
- 1...Qxh4!
- threat
- 1.Rg6?
- 1...Bxb5
- 2.Sxb5#
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qxg4#
- 1...Rd1
- 2.Sxb3#
- 1...Rd2
- 2.Sxb3#
- 1...Rc3
- 2.bxc3#
- 1...Re3
- 2.Bf6#
- 1...Sa5
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sd8
- 2.Rd6#
- 1...f2
- 2.Se2#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Qxh4!
- 1...Bxb5
- 1.Qf2+?
- 1...Re3
- 2.Sxb3#
- 1...Qe3!
- 1...Re3
- 1.Bxd3?
- Keys
- 1.Rh6!
- 1...Qxh4
- 2.Rxh4#
- 1...Bxb5
- 2.Sxb5#
- 1...Qf4
- 2.Qxf4#
- 1...Qg4
- 2.Qxg4#
- 1...Rd1
- 2.Sxb3#
- 1...Rd2
- 2.Sxb3#
- 1...Rc3
- 2.bxc3#
- 1...Re3
- 2.Bf6#
- 1...Sa5
- 2.Rd6#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sd8
- 2.Rd6#
- 1...f2
- 2.Se2#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Qxh4
- 1.Rh6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(e);OGATEB::QAR2(D),XQ(e)
- Q(e);OGATEB::QAR(D),XQ(e)
- R(b);N_GUARD::S(A),XP(a)
- R(b);OGATE::P(B),XR(b)
- B(f);XB(E)::S(I),XB(f)
- S(g);N_GUARD::R(H)
- S(g);N_GUARD::R(H),XS(g)
- P(c);N_GUARD::S(A)
- P(h);N_GUARD::S(I)
- Tries
- Try
- B(E);XR(b)
- Threat
- QAR1(D),XQ(e)
- Vars
- B(f);SBLOCK,XB(E)::S(A),XP(a)
- Q(e);OGATEB::QAR2(D),XQ(e)
- S(g);N_GUARD::R(H)
- S(g);N_GUARD::R(H),XS(g)
- P(h);N_GUARD::S(I)
- Refutation
- Q(e);N_SPINQ(e),XQ(D)
- Try
- B(E);XB(f)
- Threat
- S(I)
- Vars
- Q(e);OGATEB::QAR2(D),XQ(e)
- Q(e);OGATEB::QAR(D),XQ(e)
- S(g);N_GUARD::R(H),XS(g)
- Refutation
- Q(e);N_SPINQ(e),XQ(D)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- P(h);XB(E)::S(I),XP(h)
- Q(e);OGATEB::QAR2(D),XQ(e)
- Q(e);OGATEB::QAR(D),XQ(e)
- R(b);::R1(F)
- B(f);::QAR1(D),XQ(e)
- P(h);::R1(F),XP(h)
- Refutation
- Q(e);N_SPINQ(e),XQ(D)
- Try
- B(E);XP(h)
- Threat
- S(I)
- Vars
- Q(e);OGATEB::QAR2(D),XQ(e)
- Q(e);OGATEB::QAR(D),XQ(e)
- R(b);OGATE::P(B),XR(b)
- B(f);N_GUARD::S(I),XB(f)
- S(g);N_GUARD::R(H)
- Refutation
- Q(e);N_SPINQ(e),XQ(D)
- Try
- R(H);XB(f)
- Vars
- Q(e);OGATEB::QAR2(D),XQ(e)
- Q(e);OGATEB::QAR(D),XQ(e)
- R(b);N_GUARD::S(A),XP(a)
- R(b);OGATE::P(B),XR(b)
- R(b);SBLOCK::B(G)
- S(g);N_GUARD::R(H)
- S(g);N_GUARD::R(H),XS(g)
- P(c);N_GUARD::S(A)
- P(h);N_GUARD::S(I)
- Refutation
- Q(e);N_SPINQ(e),XQ(D)
- Try
- R(H);
- Vars
- B(f);XB(E)::S(I),XB(f)
- Q(e);OGATEB::QAR2(D),XQ(e)
- Q(e);OGATEB::QAR(D),XQ(e)
- R(b);N_GUARD::S(A),XP(a)
- R(b);OGATE::P(B),XR(b)
- R(b);SBLOCK::B(G)
- S(g);N_GUARD::R(H)
- S(g);N_GUARD::R(H),XS(g)
- P(c);N_GUARD::S(A)
- P(h);N_GUARD::S(I)
- Refutation
- Q(e);N_SPINQ(e),XQ(D)
- Try
- R(H);
- Threat
- R1(H)
- Vars
- B(f);XB(E)::S(I),XB(f)
- P(h);XR(H)::S(I),XP(h)
- Q(e);OGATEB::QAR2(D),XQ(e)
- R(b);OGATE::P(B),XR(b)
- S(g);N_GUARD::R(H)
- S(g);N_GUARD::R(H),XS(g)
- Refutation
- P(h);
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- P(h);N_GUARD,XR(H)::S(I)
- R(b);SBLOCK::B(G)
- S(g);N_GUARD::R(H)
- S(g);N_GUARD::R(H),XS(g)
- P(h);N_GUARD::S(I)
- Refutation
- Q(e);N_SPINQ(e),XQ(D)
- Try
- R(H);
- Vars
- B(f);XB(E)::S(I),XB(f)
- Q(e);OGATEB::QAR2(D),XQ(e)
- Q(e);OGATEB::QAR(D),XQ(e)
- R(b);N_GUARD::S(A),XP(a)
- R(b);OGATE::P(B),XR(b)
- R(b);SBLOCK::B(G)
- S(g);N_GUARD::R(H)
- S(g);N_GUARD::R(H),XS(g)
- P(c);N_GUARD::S(A)
- P(h);N_GUARD::S(I)
- Refutation
- Q(e);N_SPINQ(e),XQ(D)
- Try
- Q(D);CHECK,N_PINQ(e)
- Vars
- R(b);P_SPINR(b)::S(A),XP(a)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- Actual
- R(H);
- Vars
- Q(e);N_SPINQ(e),OGATE,XQ(D)::R(H),XQ(e)
- B(f);XB(E)::S(I),XB(f)
- Q(e);OGATEB::QAR2(D),XQ(e)
- Q(e);OGATEB::QAR(D),XQ(e)
- R(b);N_GUARD::S(A),XP(a)
- R(b);OGATE::P(B),XR(b)
- R(b);SBLOCK::B(G)
- S(g);N_GUARD::R(H)
- S(g);N_GUARD::R(H),XS(g)
- P(c);N_GUARD::S(A)
- P(h);N_GUARD::S(I)
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).