MESON Chess Problem Database
Problem Display
PID: 10194 (8/2K5/b1RRp3/r1n1kp2/3p1rnQ/3p3N/3N4/B6B w - - 0 1)
Whyatt, William Albert
The Australian Problemist, 1962
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Bxd4#
- 1...Rf2
- 2.Bxd4#
- 1...Rf3
- 2.Bxd4#
- 1...Re4
- 2.Sf3#
- 1...Rxa1
- 2.Rxc5#
- 1...Ra2
- 2.Rxc5#
- 1...Ra3
- 2.Rxc5#
- 1...Ra4
- 2.Rxc5#
- 1...Rb5
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bb5
- 2.Rxc5#
- 1...Bb7
- 2.Sc4#
- 1...Bc8
- 2.Sc4#
- 1...Sf2
- 2.Qh8#
- 1...Sh2
- 2.Qh8#
- 1...Se3
- 2.Qh8#
- 1...Sf6
- 2.Qxf4#
- 1...Sb3
- 2.Rxe6#
- 1...Sa4
- 2.Rxe6#
- 1...Se4
- 2.Bxd4#
- 1...Sb7
- 2.Rxe6#
- 1...Sd7
- 2.Rxe6#
- 1...Rf1
- Tries
- 1.Bb2?
- 1...Re4
- 2.Sf3#
- 1...Rf1
- 2.Bxd4#
- 1...Rf2
- 2.Bxd4#
- 1...Rf3
- 2.Bxd4#
- 1...Ra1
- 2.Rxc5#
- 1...Ra2
- 2.Rxc5#
- 1...Ra3
- 2.Rxc5#
- 1...Ra4
- 2.Rxc5#
- 1...Rb5
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bb5
- 2.Rxc5#
- 1...Bb7
- 2.Sc4#
- 1...Bc8
- 2.Sc4#
- 1...Sf2
- 2.Qh8#
- 1...Sh2
- 2.Qh8#
- 1...Se3
- 2.Qh8#
- 1...Sf6
- 2.Qxf4#
- 1...Sb3
- 2.Rxe6#
- 1...Sa4
- 2.Rxe6#
- 1...Se4
- 2.Bxd4#
- 1...Sb7
- 2.Rxe6#
- 1...Sd7
- 2.Rxe6#
- 1...Sh6!
- 1...Re4
- 1.Bg2?
- 1...Rxa1
- 2.Rxc5#
- 1...Re4
- 2.Sf3#
- 1...Rf1
- 2.Bxd4#
- 1...Rf2
- 2.Bxd4#
- 1...Rf3
- 2.Bxd4#
- 1...Ra2
- 2.Rxc5#
- 1...Ra3
- 2.Rxc5#
- 1...Ra4
- 2.Rxc5#
- 1...Rb5
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bb5
- 2.Rxc5#
- 1...Bb7
- 2.Sc4#
- 1...Bc8
- 2.Sc4#
- 1...Sf2
- 2.Qh8#
- 1...Sh2
- 2.Qh8#
- 1...Se3
- 2.Qh8#
- 1...Sf6
- 2.Qxf4#
- 1...Sb3
- 2.Rxe6#
- 1...Sa4
- 2.Rxe6#
- 1...Se4
- 2.Bxd4#
- 1...Sb7
- 2.Rxe6#
- 1...Sd7
- 2.Rxe6#
- 1...Sh6!
- 1...Rxa1
- 1.Be4?
- threat
- 2.Bxd4#
- 1...Rxe4
- 2.Sf3#
- 1...Rxa1
- 2.Rxc5#
- 1...Ra4
- 2.Rxc5#
- 1...Sb3
- 2.Rxe6#
- 1...fxe4!
- threat
- 1.Qe7?
- threat
- 2.Rd5#
- 1...Rf3
- 2.Bxd4#
- 1...Re4
- 2.Sf3#
- 1...Bc4
- 2.Sxc4#
- 1...Se3
- 2.Qg7#
- 1...Sb3
- 2.Rxe6#
- 2.Qxe6#
- 1...Sa4
- 2.Rxe6#
- 2.Qxe6#
- 1...Se4
- 2.Bxd4#
- 2.Qxe6#
- 1...Sb7
- 2.Rxe6#
- 2.Qxe6#
- 1...Sd7
- 2.Rxe6#
- 2.Qxe6#
- 1...Sf6!
- threat
- 1.Qd8?
- 1...Rxa1
- 2.Rxc5#
- 1...Sh6
- 2.Qh8#
- 1...Rf1
- 2.Bxd4#
- 1...Rf2
- 2.Bxd4#
- 1...Rf3
- 2.Bxd4#
- 1...Re4
- 2.Sf3#
- 1...Ra2
- 2.Rxc5#
- 1...Ra3
- 2.Rxc5#
- 1...Ra4
- 2.Rxc5#
- 1...Rb5
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bb5
- 2.Rxc5#
- 1...Bb7
- 2.Sc4#
- 1...Bc8
- 2.Sc4#
- 1...Sf2
- 2.Qh8#
- 1...Sh2
- 2.Qh8#
- 1...Se3
- 2.Qh8#
- 1...Sb3
- 2.Rxe6#
- 1...Sa4
- 2.Rxe6#
- 1...Se4
- 2.Bxd4#
- 2.Rxe6#
- 1...Sb7
- 2.Rxe6#
- 1...Sd7
- 2.Rxe6#
- 1...Sf6!
- 1...Rxa1
- 1.Qh6?
- 1...Rxa1
- 2.Rxc5#
- 1...Rf1
- 2.Bxd4#
- 1...Rf2
- 2.Bxd4#
- 1...Rf3
- 2.Bxd4#
- 1...Re4
- 2.Sf3#
- 1...Ra2
- 2.Rxc5#
- 1...Ra3
- 2.Rxc5#
- 1...Ra4
- 2.Rxc5#
- 1...Rb5
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bb5
- 2.Rxc5#
- 1...Bb7
- 2.Sc4#
- 1...Bc8
- 2.Sc4#
- 1...Sf2
- 2.Qg7#
- 2.Qh8#
- 1...Sh2
- 2.Qg7#
- 2.Qh8#
- 1...Se3
- 2.Qg7#
- 2.Qh8#
- 1...Sf6
- 2.Qxf4#
- 1...Sb3
- 2.Rxe6#
- 2.Qxe6#
- 1...Sa4
- 2.Rxe6#
- 2.Qxe6#
- 1...Se4
- 2.Bxd4#
- 2.Qxe6#
- 1...Sb7
- 2.Rxe6#
- 2.Qxe6#
- 1...Sd7
- 2.Rxe6#
- 2.Qxe6#
- 1...Sxh6!
- 1...Rxa1
- 1.Bb2?
- Keys
- 1.Qg5!
- 1...Rxa1
- 2.Rxc5#
- 1...Sh6
- 2.Qg7#
- 1...Rf1
- 2.Bxd4#
- 1...Rf2
- 2.Bxd4#
- 1...Rf3
- 2.Bxd4#
- 1...Re4
- 2.Sf3#
- 1...Ra2
- 2.Rxc5#
- 1...Ra3
- 2.Rxc5#
- 1...Ra4
- 2.Rxc5#
- 1...Rb5
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Bb5
- 2.Rxc5#
- 1...Bb7
- 2.Sc4#
- 1...Bc8
- 2.Sc4#
- 1...Sf2
- 2.Qg7#
- 1...Sh2
- 2.Qg7#
- 1...Se3
- 2.Qg7#
- 1...Sf6
- 2.Qxf4#
- 1...Sb3
- 2.Rxe6#
- 1...Sa4
- 2.Rxe6#
- 1...Se4
- 2.Bxd4#
- 1...Sb7
- 2.Rxe6#
- 1...Sd7
- 2.Rxe6#
- 1...Rxa1
- 1.Qg5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::B(A),XP(b)
- R(c);N_GUARD,SBLOCK::S(C)
- R(e);N_GUARD,N_SPINP(b),XB(A)::R(F),XS(f)
- R(e);N_GUARD::R(F),XS(f)
- R(e);S_CUTB(i)::S(C)
- B(i);N_GUARD::S(C),XB(i)
- B(i);S_CUTR(e)::R(F),XS(f)
- B(i);N_GUARD::S(C)
- S(d);N_GUARD::QAB(E)
- S(d);OGATE,SBLOCK::QAB1(E),XR(c)
- S(f);N_GUARD::R1(G),XP(j)
- S(f);S_CUTR(c)::B(A),XP(b)
- Tries
- Try
- B(A);
- Vars
- R(c);N_GUARD,SBLOCK::S(C)
- R(c);N_GUARD::B(A),XP(b)
- R(e);N_GUARD::R(F),XS(f)
- R(e);S_CUTB(i)::S(C)
- B(i);N_GUARD::S(C),XB(i)
- B(i);S_CUTR(e)::R(F),XS(f)
- B(i);N_GUARD::S(C)
- S(d);N_GUARD::QAB(E)
- S(d);OGATE,SBLOCK::QAB1(E),XR(c)
- S(f);N_GUARD::R1(G),XP(j)
- S(f);S_CUTR(c)::B(A),XP(b)
- Refutation
- S(d);
- Try
- B(B);
- Vars
- R(e);N_GUARD,N_SPINP(b),XB(A)::R(F),XS(f)
- R(c);N_GUARD,SBLOCK::S(C)
- R(c);N_GUARD::B(A),XP(b)
- R(e);N_GUARD::R(F),XS(f)
- R(e);S_CUTB(i)::S(C)
- B(i);N_GUARD::S(C),XB(i)
- B(i);S_CUTR(e)::R(F),XS(f)
- B(i);N_GUARD::S(C)
- S(d);N_GUARD::QAB(E)
- S(d);OGATE,SBLOCK::QAB1(E),XR(c)
- S(f);N_GUARD::R1(G),XP(j)
- S(f);S_CUTR(c)::B(A),XP(b)
- Refutation
- S(d);
- Try
- B(B);
- Threat
- B(A),XP(b)
- Vars
- R(c);N_GUARD,SBLOCK,XB(B)::S(C)
- R(e);N_GUARD,N_SPINP(b),XB(A)::R(F),XS(f)
- R(e);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R1(G),XP(j)
- Refutation
- P(h);XB(B)
- Try
- Q(E);
- Threat
- R1(G)
- Vars
- R(c);N_GUARD::B(A),XP(b)
- R(c);N_GUARD,SBLOCK::S(C)
- B(i);N_GUARD::S(C),XB(i)
- S(d);N_GUARD::QAB(E)
- Refutation
- S(d);
- Try
- Q(E);
- Vars
- R(e);N_GUARD,N_SPINP(b),XB(A)::R(F),XS(f)
- S(d);N_GUARD::QAB(E)
- R(c);N_GUARD::B(A),XP(b)
- R(c);N_GUARD,SBLOCK::S(C)
- R(e);N_GUARD::R(F),XS(f)
- R(e);S_CUTB(i)::S(C)
- B(i);N_GUARD::S(C),XB(i)
- B(i);S_CUTR(e)::R(F),XS(f)
- B(i);N_GUARD::S(C)
- S(f);N_GUARD::R1(G),XP(j)
- Refutation
- S(d);
- Try
- Q(E);
- Vars
- R(e);N_GUARD,N_SPINP(b),XB(A)::R(F),XS(f)
- R(c);N_GUARD::B(A),XP(b)
- R(c);N_GUARD,SBLOCK::S(C)
- R(e);N_GUARD::R(F),XS(f)
- R(e);S_CUTB(i)::S(C)
- B(i);N_GUARD::S(C),XB(i)
- B(i);S_CUTR(e)::R(F),XS(f)
- B(i);N_GUARD::S(C)
- S(d);SBLOCK::QAB1(E),XR(c)
- Refutation
- S(d);XQ(E)
- Try
- Actual
- Q(E);
- Vars
- R(e);N_GUARD,N_SPINP(b),P_SPINP(h),XB(A)::R(F),XS(f)
- S(d);N_GUARD::QAB(E)
- R(c);N_GUARD::B(A),XP(b)
- R(c);N_GUARD,SBLOCK::S(C)
- R(e);N_GUARD::R(F),XS(f)
- R(e);S_CUTB(i)::S(C)
- B(i);N_GUARD::S(C),XB(i)
- B(i);S_CUTR(e)::R(F),XS(f)
- B(i);N_GUARD::S(C)
- S(d);SBLOCK::QAB1(E),XR(c)
- S(f);N_GUARD::R1(G),XP(j)
- S(f);S_CUTR(c)::B(A),XP(b)
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).