MESON Chess Problem Database
Problem Display
PID: 59315 (5RB1/1nN1K3/QP2p3/1p1p1P2/1PP1kpp1/1N1R4/1BPp1P2/3r4 w - - 0 1)
Navon, Emanuel
Variantim, 2004
#2
14 + 9
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Rg1
- 2.Sxd2#
- 1...Rh1
- 2.Sxd2#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...g3
- 2.f3#
- 1...dxc4
- 2.Qxb7#
- 1...exf5
- 2.Bxd5#
- 1...e5
- 2.Bxd5#
- 1...Ra1
- Tries
- 1.Kf6?
- 1...dxc4
- 2.Qxb7#
- 1...exf5
- 2.Bxd5#
- 2.Re8#
- 1...f3
- 2.Rd4#
- 1...Ra1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Rg1
- 2.Sxd2#
- 1...Rh1
- 2.Sxd2#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...g3
- 2.f3#
- 1...d4
- 2.Qxb7#
- 1...e5
- 2.Bxd5#
- 1...bxc4!
- 1...dxc4
- 1.Sxe6?
- threat
- 2.Sg5#
- 1...f3
- 2.Re3#
- 1...d4!
- threat
- 1.Bg7?
- 1...dxc4
- 2.Qxb7#
- 1...exf5
- 2.Bxd5#
- 1...f3
- 2.Rd4#
- 1...Ra1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Rg1
- 2.Sxd2#
- 1...Rh1
- 2.Sxd2#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...g3
- 2.f3#
- 1...d4
- 2.Qxb7#
- 1...e5
- 2.Bxd5#
- 1...bxc4!
- 1...dxc4
- 1.Bh8?
- 1...dxc4
- 2.Qxb7#
- 1...exf5
- 2.Bxd5#
- 1...f3
- 2.Rd4#
- 1...Ra1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Rg1
- 2.Sxd2#
- 1...Rh1
- 2.Sxd2#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...g3
- 2.f3#
- 1...d4
- 2.Qxb7#
- 1...e5
- 2.Bxd5#
- 1...bxc4!
- 1...dxc4
- 1.Bh7?
- threat
- 2.fxe6#
- 2.f6#
- 1...exf5
- 2.Bxf5#
- 1...f3
- 2.fxe6#
- 1...Rh1
- 2.Sxd2#
- 1...Sd6
- 2.Sc5#
- 1...e5
- 2.f6#
- 1...d4!
- threat
- 1.fxe6?
- threat
- 2.Bh7#
- 1...Rh1
- 2.Sxd2#
- 1...Sd6
- 2.Sc5#
- 1...d4!
- threat
- 1.Kf6?
- Keys
- 1.Sxd5!
- 1...bxc4
- 2.Qxc4#
- 1...exd5
- 2.Bxd5#
- 1...exf5
- 2.Sf6#
- 1...Ra1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Rg1
- 2.Sxd2#
- 1...Rh1
- 2.Sxd2#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...f3
- 2.Re3#
- 1...g3
- 2.f3#
- 1...e5
- 2.Sc3#
- 1...bxc4
- 1.Sxd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::S(D),XP(b)
- S(i);N_GUARD::S(D)
- S(i);N_GUARD::S(D),XS(i)
- P(e);N_GUARD::P(C)
- P(g);OGATEB,XP(G)::QAB(I),XS(i)
- P(h);OGATE,XP(H)::B(N),XP(g)
- P(h);OGATE::B(N),XP(g)
- Tries
- Try
- K(L);S_FLIGHT
- Vars
- P(g);OGATEB,XP(G)::QAB(I),XS(i)
- P(d);SBLOCK::R1(E)
- R(a);N_GUARD::S(D),XP(b)
- S(i);N_GUARD::S(D)
- S(i);N_GUARD::S(D),XS(i)
- P(e);N_GUARD::P(C)
- P(g);OGATEB::QAB(I),XS(i)
- P(h);OGATE::B(N),XP(g)
- Refutation
- P(f);XP(G)
- Try
- S(K);XP(h)
- Threat
- S(K)
- Vars
- P(d);N_GUARD::R1(E)
- Refutation
- P(g);
- Try
- B(A);
- Vars
- P(g);OGATEB,XP(G)::QAB(I),XS(i)
- P(h);OGATE,XP(H)::B(N),XP(g)
- P(d);SBLOCK::R1(E)
- R(a);N_GUARD::S(D),XP(b)
- S(i);N_GUARD::S(D)
- S(i);N_GUARD::S(D),XS(i)
- P(e);N_GUARD::P(C)
- P(g);OGATEB::QAB(I),XS(i)
- P(h);OGATE::B(N),XP(g)
- Refutation
- P(f);XP(G)
- Try
- B(A);
- Vars
- P(g);OGATEB,XP(G)::QAB(I),XS(i)
- P(h);OGATE,XP(H)::B(N),XP(g)
- P(d);SBLOCK::R1(E)
- R(a);N_GUARD::S(D),XP(b)
- S(i);N_GUARD::S(D)
- S(i);N_GUARD::S(D),XS(i)
- P(e);N_GUARD::P(C)
- P(g);OGATEB::QAB(I),XS(i)
- P(h);OGATE::B(N),XP(g)
- Refutation
- P(f);XP(G)
- Try
- B(N);
- Threat
- DUALS(2)
- Vars
- P(h);OGATE,P_SPINP(h),XP(H)::B(N),XP(h)
- P(d);::B(N)+P(H),XP(h)
- R(a);N_GUARD::S(D),XP(b)
- S(i);N_GUARD::S(D)
- P(h);::B(N)+P(H)
- Refutation
- P(g);
- Try
- P(H);XP(h)
- Threat
- B(N)
- Vars
- R(a);N_GUARD::S(D),XP(b)
- S(i);N_GUARD::S(D)
- Refutation
- P(g);
- Try
- Actual
- S(K);XP(g)
- Vars
- P(f);OGATE,XP(G)::QAR2(I),XP(f)
- P(h);OGATE,XS(K)::B(N),XP(h)
- P(h);SBLOCK,XP(H)::S(K)
- R(a);N_GUARD::S(D),XP(b)
- S(i);N_GUARD::S(D)
- S(i);N_GUARD::S(D),XS(i)
- P(d);N_GUARD::R1(E)
- P(e);N_GUARD::P(C)
- P(h);SBLOCK::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).