MESON Chess Problem Database
Problem Display
PID: 101041 (1K2nN2/P2p3Q/1p5R/2pkB3/2N2P2/r3p3/n2bB3/1r6 w - - 0 1)
Kennard, Walter Irving
Good Companions, 1921
#2
9 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxb6#
- 1...Rc1
- 2.Sxb6#
- 1...Rd1
- 2.Sxb6#
- 1...Re1
- 2.Sxb6#
- 1...Rf1
- 2.Sxb6#
- 1...Rg1
- 2.Sxb6#
- 1...Rh1
- 2.Sxb6#
- 1...Rb3
- 2.a8Q#
- 2.a8B#
- 1...Rc3
- 2.a8Q#
- 2.a8B#
- 1...Rd3
- 2.Qxd3#
- 1...Ra4
- 2.Qd3#
- 1...Ra5
- 2.Qd3#
- 1...Ra6
- 2.Qd3#
- 1...Rxa7
- 2.Qd3#
- 1...Bc3
- 2.Sxe3#
- 1...Bb4
- 2.Sxb6#
- 1...Ba5
- 2.a8Q#
- 2.a8B#
- 1...Sc3
- 2.Qd3#
- 1...Sb4
- 2.Sxb6#
- 1...Sd6
- 2.Rxd6#
- 1...Sc7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...b5
- 2.Sb6#
- 1...d6
- 2.Qb7#
- 1...Ra1
- Tries
- 1.Sxa3?
- threat
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.a8Q#
- 2.a8B#
- 1...Rb2
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Ra1
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.Bf3#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Rd1
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Re1
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Rf1
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Rg1
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Rb3
- 2.Bf3#
- 2.Bc4#
- 2.a8Q#
- 2.a8B#
- 1...Rb4
- 2.a8Q#
- 2.a8B#
- 1...Rb5
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Bc1
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Be1
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Bc3
- 2.Bf3#
- 2.Bc4#
- 2.a8Q#
- 2.a8B#
- 1...Bb4
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Ba5
- 2.Bf3#
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Sc1
- 2.Bf3#
- 2.Bc4#
- 2.a8Q#
- 2.a8B#
- 1...Sc3
- 2.Bc4#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...Sb4
- 2.Bf3#
- 2.Bc4#
- 1...Sc7
- 2.Bf3#
- 2.Bc4#
- 2.Rd6#
- 2.Qd3#
- 1...Sg7
- 2.Bf3#
- 2.Bc4#
- 2.Rd6#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...b5
- 2.Bf3#
- 2.Qd3#
- 2.a8Q#
- 2.a8B#
- 1...c4!
- threat
- 1.Sxe3+?
- 1...Rxe3
- 2.a8Q#
- 2.a8B#
- 1...Bxe3!
- 1...Rxe3
- 1.Bd3?
- threat
- 2.Qe4#
- 2.Qg8#
- 2.Qf7#
- 1...Rxd3
- 2.Qxd3#
- 1...Sd6
- 2.Rxd6#
- 1...d6
- 2.Qe4#
- 2.Qb7#
- 1...Rg1
- 2.Sxb6#
- 2.Qe4#
- 2.Qf7#
- 1...Sc3
- 2.Qg8#
- 2.Qf7#
- 1...Sc7
- 2.Rd6#
- 2.Qe4#
- 2.Qxd7#
- 1...Sg7
- 2.Rd6#
- 2.Qe4#
- 1...Sf6!
- threat
- 1.Bh8?
- threat
- 2.Qf5#
- 1...Rd3
- 2.Qxd3#
- 1...Sd6
- 2.Rxd6#
- 1...Sg7
- 2.Rd6#
- 1...d6
- 2.Qb7#
- 1...Bc3
- 2.Sxe3#
- 1...Sf6!
- threat
- 1.Rf6?
- 1...Rxa7
- 2.Qd3#
- 1...Rd3
- 2.Qxd3#
- 1...Sd6
- 2.Rxd6#
- 1...d6
- 2.Qb7#
- 1...Rb2
- 2.Qh1#
- 1...Ra1
- 2.Sxb6#
- 1...Rc1
- 2.Sxb6#
- 1...Rd1
- 2.Sxb6#
- 1...Re1
- 2.Sxb6#
- 1...Rf1
- 2.Sxb6#
- 1...Rg1
- 2.Sxb6#
- 1...Rh1
- 2.Sxb6#
- 2.Qxh1#
- 1...Rbb3
- 2.Qh1#
- 1...Rb4
- 2.Qh1#
- 1...Rb5
- 2.Qh1#
- 1...Rab3
- 2.a8Q#
- 2.a8B#
- 1...Rc3
- 2.a8Q#
- 2.a8B#
- 1...Ra4
- 2.Qd3#
- 1...Ra5
- 2.Qd3#
- 1...Ra6
- 2.Qd3#
- 1...Bc1
- 2.Qh1#
- 1...Be1
- 2.Qh1#
- 1...Bc3
- 2.Sxe3#
- 1...Bb4
- 2.Sxb6#
- 1...Ba5
- 2.a8Q#
- 2.a8B#
- 1...Sc1
- 2.Qh1#
- 1...Sc3
- 2.Qd3#
- 1...Sb4
- 2.Sxb6#
- 1...Sc7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...b5
- 2.Sb6#
- 1...Sxf6!
- 1...Rxa7
- 1.Qxb1?
- threat
- 2.Sxb6#
- 2.Qh1#
- 1...Rd3
- 2.Qxd3#
- 1...Sd6
- 2.Rxd6#
- 1...d6
- 2.Qh1#
- 1...Rb3
- 2.Qh1#
- 2.a8Q#
- 2.a8B#
- 1...Ra6
- 2.Qd3#
- 2.Qh1#
- 1...Bc1
- 2.Sxb6#
- 1...Be1
- 2.Sxb6#
- 1...Ba5
- 2.Qh1#
- 2.a8Q#
- 2.a8B#
- 1...Sc1
- 2.Sxb6#
- 1...Sc3
- 2.Sxb6#
- 2.Qd3#
- 1...b5
- 2.Sb6#
- 2.Qh1#
- 1...Sf6!
- threat
- 1.Qc2?
- threat
- 2.Bf3#
- 1...Sd6
- 2.Rxd6#
- 1...Rf1
- 2.Sxb6#
- 1...Rc3
- 2.a8Q#
- 2.a8B#
- 1...Bc3
- 2.Sxe3#
- 1...Sc3
- 2.Qd3#
- 1...Sf6!
- threat
- 1.Sxa3?
- Keys
- 1.Re6!
- 1...Rxa7
- 2.Qd3#
- 1...dxe6
- 2.Qb7#
- 1...Rd3
- 2.Qxd3#
- 1...Sd6
- 2.Rxd6#
- 1...d6
- 2.Qb7#
- 1...Rb2
- 2.Qh1#
- 1...Ra1
- 2.Sxb6#
- 1...Rc1
- 2.Sxb6#
- 1...Rd1
- 2.Sxb6#
- 1...Re1
- 2.Sxb6#
- 1...Rf1
- 2.Sxb6#
- 1...Rg1
- 2.Sxb6#
- 1...Rh1
- 2.Sxb6#
- 2.Qxh1#
- 1...Rbb3
- 2.Qh1#
- 1...Rb4
- 2.Qh1#
- 1...Rb5
- 2.Qh1#
- 1...Rab3
- 2.a8Q#
- 2.a8B#
- 1...Rc3
- 2.a8Q#
- 2.a8B#
- 1...Ra4
- 2.Qd3#
- 1...Ra5
- 2.Qd3#
- 1...Ra6
- 2.Qd3#
- 1...Bc1
- 2.Qh1#
- 1...Be1
- 2.Qh1#
- 1...Bc3
- 2.Sxe3#
- 1...Bb4
- 2.Sxb6#
- 1...Ba5
- 2.a8Q#
- 2.a8B#
- 1...Sc1
- 2.Qh1#
- 1...Sc3
- 2.Qd3#
- 1...Sb4
- 2.Sxb6#
- 1...Sf6
- 2.Rd6#
- 1...Sc7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...b5
- 2.Sb6#
- 1...Rxa7
- 1.Re6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::S(B),XP(h)
- R(d);N_GUARD::P=Q
- R(d);N_GUARD::QAR2(G),XR(d)
- R(d);N_GUARD::QAR2(G)
- R(d);N_GUARD,XP(F)::QAR2(G)
- B(c);N_GUARD,S_CUTR(d)::S(B),XP(e)
- B(c);S_CUTR(a)::S(B),XP(h)
- B(c);S_CUTR(d)::P=Q
- S(b);S_CUTR(d)::QAR2(G)
- S(b);S_CUTR(a)::S(B),XP(h)
- S(j);N_GUARD::R1(E),XS(j)
- S(j);N_GUARD::R1(E)
- P(h);S_CUTR(a)::S(B)
- P(i);OGATE::QAB(G)
- Tries
- Try
- S(B);XR(d)
- Threat
- DUALS(5)
- Vars
- S(j);N_GUARD::R1(E),XS(j)
- S(j);::P=Q
- R(a);::P=Q
- Refutation
- P(f);
- Try
- S(B);CHECK,XP(e)
- Vars
- R(d);XS(B)::P=Q
- Refutation
- B(c);XS(B)
- Try
- B(A);
- Threat
- DUALS(3)
- Vars
- R(d);OGATE,XB(A)::QAR2(G),XR(d)
- S(j);N_GUARD::R1(E),XS(j)
- Refutation
- S(j);
- Try
- B(D);
- Threat
- QAR2(G)
- Vars
- R(d);N_GUARD::QAR2(G),XR(d)
- S(j);N_GUARD::R1(E),XS(j)
- S(j);N_GUARD::R1(E)
- P(i);OGATE::QAB(G)
- B(c);N_GUARD,S_CUTR(d)::S(B),XP(e)
- Refutation
- S(j);
- Try
- R(E);
- Vars
- R(d);N_GUARD,XP(F)::QAR2(G)
- R(d);N_GUARD::QAR2(G),XR(d)
- S(j);N_GUARD::R1(E),XS(j)
- P(i);OGATE::QAB(G)
- R(a);N_GUARD::QAB(G)
- R(a);N_GUARD::S(B),XP(h)
- R(d);N_GUARD::P=Q
- R(d);N_GUARD::QAR2(G)
- B(c);S_CUTR(a)::QAB(G)
- B(c);N_GUARD,S_CUTR(d)::S(B),XP(e)
- B(c);S_CUTR(a)::S(B),XP(h)
- B(c);S_CUTR(d)::P=Q
- S(b);S_CUTR(a)::QAB(G)
- S(b);S_CUTR(d)::QAR2(G)
- S(b);S_CUTR(a)::S(B),XP(h)
- S(j);N_GUARD::R1(E)
- P(h);S_CUTR(a)::S(B)
- Refutation
- S(j);XR(E)
- Try
- Q(G);XR(a)
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD::QAR2(G),XR(d)
- S(j);N_GUARD::R1(E),XS(j)
- P(i);::QAB(G)
- B(c);::S(B),XP(h)
- S(b);::S(B),XP(h)
- Refutation
- S(j);
- Try
- Q(G);
- Threat
- B(A)
- Vars
- S(j);N_GUARD::R1(E),XS(j)
- R(a);N_GUARD::S(B),XP(h)
- R(d);N_GUARD::P=Q
- B(c);N_GUARD,S_CUTR(d)::S(B),XP(e)
- S(b);S_CUTR(d)::QAR2(G)
- Refutation
- S(j);
- Try
- Actual
- R(E);
- Vars
- R(d);N_GUARD,XP(F)::QAR2(G)
- P(i);OGATE,XR(E)::QAB(G)
- R(d);N_GUARD::QAR2(G),XR(d)
- S(j);N_GUARD::R1(E),XS(j)
- P(i);OGATE::QAB(G)
- R(a);N_GUARD::QAB(G)
- R(a);N_GUARD::S(B),XP(h)
- R(d);N_GUARD::P=Q
- R(d);N_GUARD::QAR2(G)
- B(c);S_CUTR(a)::QAB(G)
- B(c);N_GUARD,S_CUTR(d)::S(B),XP(e)
- B(c);S_CUTR(a)::S(B),XP(h)
- B(c);S_CUTR(d)::P=Q
- S(b);S_CUTR(a)::QAB(G)
- S(b);S_CUTR(d)::QAR2(G)
- S(b);S_CUTR(a)::S(B),XP(h)
- S(j);N_GUARD::R1(E)
- P(h);S_CUTR(a)::S(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).