MESON Chess Problem Database
Problem Display
PID: 152140 (B2b3K/1R1ppQ2/2k5/1n1p2p1/1p2Nrp1/1Nn3B1/2R5/8 w - - 0 1)
Weiss, Berthold
Good Companions (April), 1915
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Rb8#
- 1...Rf2
- 2.Rb8#
- 1...Rf3
- 2.Rb8#
- 1...Rxe4
- 2.Rb8#
- 1...Rf5
- 2.Rb8#
- 1...Rf6
- 2.Rb8#
- 1...Rxf7
- 2.Rb8#
- 1...Ba5
- 2.Sxa5#
- 1...Bb6
- 2.Ra7#
- 1...Bc7
- 2.Rb8#
- 1...Sa3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 2.Sa5#
- 1...d4
- 2.Qc4#
- 1...d6
- 2.Qe8#
- 1...e5
- 2.Qxd7#
- 1...e6
- 2.Qxd7#
- 1...Rf1
- Tries
- 1.Kg8?
- 1...Rxe4
- 2.Rb8#
- 1...Rxf7
- 2.Rb8#
- 1...Rf1
- 2.Rb8#
- 1...Rf2
- 2.Rb8#
- 1...Rf3
- 2.Rb8#
- 1...Rf5
- 2.Rb8#
- 1...Rf6
- 2.Rb8#
- 1...Ba5
- 2.Sxa5#
- 1...Bb6
- 2.Ra7#
- 1...Bc7
- 2.Rb8#
- 1...Sa3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 2.Sa5#
- 1...d4
- 2.Qc4#
- 1...d6
- 2.Qe8#
- 1...e5
- 2.Qxd7#
- 1...e6
- 2.Qxd7#
- 1...dxe4!
- 1...Rxe4
- 1.Bxf4?
- threat
- 2.Rb8#
- 1...Sd6
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 2.Sa5#
- 1...d6
- 2.Qe8#
- 1...e5
- 2.Qxd7#
- 1...gxf4!
- threat
- 1.Rc1?
- 1...Rxe4
- 2.Rb8#
- 1...Rxf7
- 2.Rb8#
- 1...Ba5
- 2.Sxa5#
- 1...Rf1
- 2.Rb8#
- 1...Rf2
- 2.Rb8#
- 1...Rf3
- 2.Rb8#
- 1...Rf5
- 2.Rb8#
- 1...Rf6
- 2.Rb8#
- 1...Bb6
- 2.Ra7#
- 1...Bc7
- 2.Rb8#
- 1...Sa3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 2.Sa5#
- 1...d4
- 2.Qc4#
- 1...d6
- 2.Qe8#
- 1...e5
- 2.Qxd7#
- 1...e6
- 2.Qxd7#
- 1...dxe4!
- 1...Rxe4
- 1.Rxc3+?
- 1...Sxc3
- 2.Sd4#
- 1...bxc3!
- 1...Sxc3
- 1.Qe6+?
- 1...Sd6
- 2.Sd4#
- 2.Qxd7#
- 1...d6
- 2.Qd7#
- 1...dxe6!
- 1...Sd6
- 1.Qg6+?
- 1...Rf6
- 2.Rb8#
- 1...Sd6
- 2.Sd4#
- 1...d6
- 2.Qe8#
- 1...e6!
- 1...Rf6
- 1.Qe8?
- threat
- 2.Qxd7#
- 1...Bc7
- 2.Rb8#
- 1...Sc7
- 2.Sd4#
- 2.Sa5#
- 1...Rf8+!
- threat
- 1.Qf5?
- threat
- 2.Qxd7#
- 1...Rxf5
- 2.Rb8#
- 1...Bc7
- 2.Rb8#
- 1...Sc7
- 2.Sd4#
- 2.Sa5#
- 1...d6
- 2.Qd7#
- 1...e6!
- threat
- 1.Qxe7?
- threat
- 2.Qc5#
- 2.Qxd7#
- 1...Bxe7
- 2.Sa5#
- 1...Rf7
- 2.Rb8#
- 2.Qc5#
- 1...Bb6
- 2.Ra7#
- 2.Rxd7#
- 2.Qxd7#
- 1...Bc7
- 2.Rb8#
- 2.Qc5#
- 1...Sd6
- 2.Sd4#
- 2.Qxd6#
- 2.Qxd7#
- 1...Sc7
- 2.Sd4#
- 2.Sa5#
- 2.Qc5#
- 2.Qd6#
- 1...d6
- 2.Rb8#
- 2.Qd7#
- 2.Qe8#
- 1...Rf8+!
- threat
- 1.Kg8?
- Keys
- 1.Rd2!
- 1...Rxe4
- 2.Rb8#
- 1...Rxf7
- 2.Rb8#
- 1...Sxe4
- 2.Qxd5#
- 1...dxe4
- 2.Qc4#
- 1...Ba5
- 2.Sxa5#
- 1...Rf1
- 2.Rb8#
- 1...Rf2
- 2.Rb8#
- 1...Rf3
- 2.Rb8#
- 1...Rf5
- 2.Rb8#
- 1...Rf6
- 2.Rb8#
- 1...Bb6
- 2.Ra7#
- 1...Bc7
- 2.Rb8#
- 1...Sb1
- 2.Qxd5#
- 1...Sd1
- 2.Qxd5#
- 1...Sa2
- 2.Qxd5#
- 1...Se2
- 2.Qxd5#
- 1...Sa4
- 2.Qxd5#
- 1...Sa3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 2.Sa5#
- 1...d4
- 2.Qc4#
- 1...d6
- 2.Qe8#
- 1...e5
- 2.Qxd7#
- 1...e6
- 2.Qxd7#
- 1...Rxe4
- 1.Rd2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(c);::B(G)+R(E)
- R(c);XS(D)::B(G)+R(E)
- R(c);XQ(F)::B(G)+R(E)
- B(k);N_GUARD::S(B),XB(k)
- B(k);SBLOCK::B(G)+R(E)
- S(e);N_GUARD::S(B)
- S(e);N_GUARD::S(B),XS(e)
- P(f);OGATE::QAR2(F)
- P(i);OGATEB::QAB(F)
- P(j);OGATE::QAB1(F),XP(i)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- R(c);XS(D)::B(G)+R(E)
- R(c);XQ(F)::B(G)+R(E)
- R(c);::B(G)+R(E)
- B(k);N_GUARD::S(B),XB(k)
- B(k);SBLOCK::B(G)+R(E)
- S(e);N_GUARD::S(B)
- S(e);N_GUARD::S(B),XS(e)
- P(f);OGATE::QAR2(F)
- P(i);OGATEB::QAB(F)
- P(j);OGATE::QAB1(F),XP(i)
- Refutation
- P(f);XS(D)
- Try
- B(C);XR(c)
- Threat
- B(G)+R(E)
- Vars
- S(e);N_GUARD::S(B)
- P(i);OGATEB::QAB(F)
- P(j);OGATE::QAB1(F),XP(i)
- Refutation
- P(g);XB(C)
- Try
- R(A);
- Vars
- R(c);XS(D)::B(G)+R(E)
- R(c);XQ(F)::B(G)+R(E)
- B(k);N_GUARD::S(B),XB(k)
- R(c);::B(G)+R(E)
- B(k);SBLOCK::B(G)+R(E)
- S(e);N_GUARD::S(B)
- S(e);N_GUARD::S(B),XS(e)
- P(f);OGATE::QAR2(F)
- P(i);OGATEB::QAB(F)
- P(j);OGATE::QAB1(F),XP(i)
- Refutation
- P(f);XS(D)
- Try
- R(A);CHECK,XS(a)
- Vars
- S(e);XR(A)::S(B)
- Refutation
- P(b);XR(A)
- Try
- Q(F);CHECK
- Vars
- P(i);P_SPINP(i)::QAB1(F)
- Refutation
- P(i);XQ(F)
- Try
- Q(F);CHECK
- Vars
- R(c);P_SPINR(c)::B(G)+R(E)
- S(e);::S(B)
- P(i);OGATEB,P_SPINP(i)::QAB(F)
- Refutation
- P(j);P_SPINP(j)
- Try
- Q(F);P_PINP(i)
- Threat
- QAB1(F),XP(i)
- Vars
- B(k);SBLOCK::B(G)+R(E)
- Refutation
- R(c);CHECK
- Try
- Q(F);
- Threat
- QAB1(F),XP(i)
- Vars
- R(c);XQ(F)::B(G)+R(E)
- B(k);SBLOCK::B(G)+R(E)
- P(i);::QAB1(F)
- Refutation
- P(j);
- Try
- Q(F);XP(j)
- Threat
- DUALS(2)
- Vars
- B(k);N_GUARD,XQ(F)::S(B)
- Refutation
- R(c);CHECK
- Try
- Actual
- R(A);N_PINS(a)
- Vars
- R(c);XS(D)::B(G)+R(E)
- R(c);XQ(F)::B(G)+R(E)
- S(a);N_GUARD,XS(D)::QAB1(F),XP(f)
- P(f);OGATE,XS(D)::QAR2(F)
- B(k);N_GUARD::S(B),XB(k)
- R(c);::B(G)+R(E)
- B(k);SBLOCK::B(G)+R(E)
- S(a);N_GUARD::QAB1(F),XP(f)
- S(e);N_GUARD::S(B)
- S(e);N_GUARD::S(B),XS(e)
- P(f);OGATE::QAR2(F)
- P(i);OGATEB::QAB(F)
- P(j);OGATE::QAB1(F),XP(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).