MESON Chess Problem Database
Problem Display
PID: 267501 (6r1/P1P4N/R3PB2/1N1k3n/R4PBr/K5b1/2PPp3/3nQ3 w - - 0 1)
Chandler, EW
Sunday Referee, 1939
(First published on Sun Jan 22 1939)
#2
14 + 7
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Tries
- 1.Sc3+?
- 1...Kc5
- 2.Bd4#
- 2.Be7#
- 2.d4#
- 1...Sxc3!
- 1...Kc5
- 1.Bd4?
- threat
- 2.Bf3#
- 1...Rhxg4
- 2.Qh1#
- 1...Rgxg4
- 2.a8Q#
- 2.a8B#
- 1...Sf2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sf6
- 2.Sxf6#
- 1...Ke4!
- threat
- 1.Qh1+?
- 1...Kc5
- 2.Qc6#
- 1...Rxh1!
- 1...Kc5
- 1.Qxe2?
- threat
- 2.Qc4#
- 2.Qe5#
- 1...Kc5
- 2.Qc4#
- 2.Qe5#
- 1...Bxf4
- 2.Qc4#
- 1...Rg5
- 2.Qc4#
- 1...Sb2
- 2.Qe5#
- 1...Se3!
- threat
- 1.c4+?
- 1...Kc5
- 2.Bd4#
- 2.Be7#
- 2.d4#
- 1...Ke4!
- 1...Kc5
- 1.d4?
- threat
- 2.Bf3#
- 1...Rhxg4
- 2.Qh1#
- 1...Rgxg4
- 2.a8Q#
- 2.a8B#
- 1...Sxf6
- 2.Sxf6#
- 1...Sf2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Ke4!
- threat
- 1.a8Q+?
- 1...Kc5
- 2.Qc6#
- 1...Rxa8!
- 1...Kc5
- 1.c8Q?
- threat
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rhxg4
- 2.Rd4#
- 2.Rd6#
- 2.Qh1#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rgxg4
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Bxe1
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Bxf4
- 2.Bf3#
- 2.Rd4#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Sxf4
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Sxf6
- 2.Sxf6#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qxh1#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rh3
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rg5
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rg6
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rg7
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 1...Rd8
- 2.Bf3#
- 2.Rd4#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Re8
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rf8
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rh8
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Bf2
- 2.Bf3#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Bh2
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qh1#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Sb2
- 2.Sc3#
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Sf2
- 2.Sc3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Sc3
- 2.Sxc3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Se3
- 2.Sc3#
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Sg7
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qc4#
- 2.Qc6#
- 2.a8Q#
- 2.a8B#
- 1...Rxc8!
- threat
- 1.c8R?
- threat
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rhxg4
- 2.Rd4#
- 2.Rd6#
- 2.Qh1#
- 2.a8Q#
- 2.a8B#
- 1...Rgxg4
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Bxe1
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Bxf4
- 2.Bf3#
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Sxf4
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Sxf6
- 2.Sxf6#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qxh1#
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rh3
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rg5
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rg6
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rg7
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 1...Rd8
- 2.Bf3#
- 2.Rd4#
- 2.a8Q#
- 2.a8B#
- 1...Re8
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rf8
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rh8
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Bf2
- 2.Bf3#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Bh2
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.Qh1#
- 2.a8Q#
- 2.a8B#
- 1...Sb2
- 2.Sc3#
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Sf2
- 2.Sc3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Sc3
- 2.Sxc3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Se3
- 2.Sc3#
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Sg7
- 2.Bf3#
- 2.Rd4#
- 2.Rd6#
- 2.a8Q#
- 2.a8B#
- 1...Rxc8!
- threat
- 1.Sc3+?
- Keys
- 1.Kb4!
- threat
- 2.Bf3#
- 1...Ke4
- 2.Kc5#
- 1...Rhxg4
- 2.Qh1#
- 1...Rgxg4
- 2.a8Q#
- 2.a8B#
- 1...Sxf6
- 2.Sxf6#
- 1...Sf2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- threat
- 1.Kb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(H);CHECK
- Refutation
- S(a);XS(H)
- Try
- B(K);
- Threat
- B(G)
- Vars
- R(d);N_GUARD,XB(G)::QAB(A)
- R(g);N_GUARD,XB(G)::P=Q
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- S(f);N_GUARD::S(N),XS(f)
- Refutation
- K(e);P_SPINP(b),S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- K(e);OGATE,P-FLIGHT::QAR1(A)
- Refutation
- R(d);XQ(A)
- Try
- Q(A);XP(b)
- Threat
- DUALS(2)
- Vars
- B(c);XP(F)::QAB1(A)
- R(g);::QAB1(A)
- S(a);::QAR1(A)
- Refutation
- S(a);
- Try
- P(B);CHECK
- Refutation
- K(e);P_SPINP(b),S_FLIGHT
- Try
- P(C);
- Threat
- B(G)
- Vars
- R(d);N_GUARD,XB(G)::QAB(A)
- R(g);N_GUARD,XB(G)::P=Q
- S(f);XB(K)::S(N),XS(f)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- Refutation
- K(e);P_SPINP(b),S_FLIGHT
- Try
- P(L);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(L)
- Refutation
- R(g);XQ(L)
- Try
- P(M);
- Threat
- DUALS(7)
- Refutation
- R(g);XQ(M)
- Try
- P(M);
- Threat
- DUALS(5)
- Refutation
- R(g);XR(M)
- Try
- Actual
- K(D);S_FLIGHT
- Threat
- B(G)
- Vars
- K(e);P_SPINP(b),S_FLIGHT::R(E)+K(D)
- R(d);N_GUARD,P_PINP(F),XB(G)::QAB(A)
- R(g);N_GUARD,P_PINP(F),XB(G)::P=Q
- S(f);XB(K)::S(N),XS(f)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
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).