MESON Chess Problem Database
Problem Display
PID: 21365 (8/4pp1K/5k2/4qB1R/6n1/2Q1R3/8/8 w - - 0 1)
Mitchell, David Andrew
Good Companions (November), 1918
#2
5 + 5
| 3132 | The Good Companion Two-Mover | 1922 |
| 236 | The Field | 1924 |
| 3310 | 2345 Chess Problems | 1997 |
| 3713 | Snap | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Sf2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sh6
- 2.Qxe5#
- 1...Sf2
- Tries
- 1.Bb1?
- 1...Ke6
- 2.Qc6#
- 1...Qxc3
- 2.Rf5#
- 1...Sxe3
- 2.Qxe5#
- 1...Qd4
- 2.Rf5#
- 1...Sf2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sh6
- 2.Qxe5#
- 1...e6!
- 1...Ke6
- 1.Bc2?
- 1...Ke6
- 2.Qc6#
- 1...Qxc3
- 2.Rf5#
- 1...Sxe3
- 2.Qxe5#
- 1...Qd4
- 2.Rf5#
- 1...Sf2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sh6
- 2.Qxe5#
- 1...e6!
- 1...Ke6
- 1.Bd3?
- 1...Ke6
- 2.Qc6#
- 1...Qxc3
- 2.Rf5#
- 1...Sxe3
- 2.Qxe5#
- 1...Qd4
- 2.Rf5#
- 1...Sf2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sh6
- 2.Qxe5#
- 1...e6!
- 1...Ke6
- 1.Bxg4?
- threat
- 2.Rf3#
- 2.Qxe5#
- 1...Qxc3
- 2.Rf5#
- 1...Qd4
- 2.Rf3#
- 2.Rf5#
- 1...e6!
- threat
- 1.Bd7?
- threat
- 2.Rf3#
- 2.Rf5#
- 1...Qxc3
- 2.Rf5#
- 1...Sxe3
- 2.Qxe5#
- 1...Sh2
- 2.Rf5#
- 2.Qxe5#
- 1...Sh6
- 2.Qxe5#
- 1...e6!
- threat
- 1.Bc8?
- threat
- 2.Rf3#
- 2.Rf5#
- 1...Qxc3
- 2.Rf5#
- 1...Sxe3
- 2.Qxe5#
- 1...Sh2
- 2.Rf5#
- 2.Qxe5#
- 1...Sh6
- 2.Qxe5#
- 1...e6!
- threat
- 1.Rxe5?
- threat
- 2.Re6#
- 1...e6
- 2.Rxe6#
- 1...Sxe5!
- threat
- 1.Qd4?
- 1...Sxe3
- 2.Qh4#
- 1...e6
- 2.Qd8#
- 1...Sf2
- 2.Qxe5#
- 2.Qh4#
- 1...Sh2
- 2.Qxe5#
- 2.Qh4#
- 1...Sh6
- 2.Qxe5#
- 2.Qh4#
- 1...Qxd4!
- 1...Sxe3
- 1.Qc8?
- threat
- 2.Qh8#
- 1...Qxf5+
- 2.Rxf5#
- 2.Qxf5#
- 1...e6
- 2.Qd8#
- 1...Qb8!
- threat
- 1.Bb1?
- Keys
- 1.Be6!
- 1...Kxe6
- 2.Qc6#
- 1...Qxc3
- 2.Rf5#
- 1...Sxe3
- 2.Qxe5#
- 1...fxe6
- 2.Rf3#
- 1...Qd4
- 2.Rf5#
- 1...Sf2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sh6
- 2.Qxe5#
- 1...Kxe6
- 1.Be6!
This anticipates 76431(1930)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(A),XQ(b)
- Tries
- Try
- B(C);
- Vars
- K(c);P-FLIGHT::QAR2(A)
- Q(b);N_SPINQ(b),XQ(A)::R1(D)
- S(a);N_GUARD,XR(B)::QAB1(A),XQ(b)
- Q(b);::R1(D)
- S(a);N_GUARD::QAB1(A),XQ(b)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- K(c);P-FLIGHT::QAR2(A)
- Q(b);N_SPINQ(b),XQ(A)::R1(D)
- S(a);N_GUARD,XR(B)::QAB1(A),XQ(b)
- Q(b);::R1(D)
- S(a);N_GUARD::QAB1(A),XQ(b)
- Refutation
- P(d);
- Try
- B(C);
- Vars
- K(c);P-FLIGHT::QAR2(A)
- Q(b);N_SPINQ(b),XQ(A)::R1(D)
- S(a);N_GUARD,XR(B)::QAB1(A),XQ(b)
- Q(b);::R1(D)
- S(a);N_GUARD::QAB1(A),XQ(b)
- Refutation
- P(d);
- Try
- B(C);XS(a)
- Threat
- DUALS(2)
- Vars
- Q(b);N_SPINQ(b),XQ(A)::R1(D)
- Refutation
- P(d);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(b);N_SPINQ(b),XQ(A)::R1(D)
- S(a);N_GUARD,XR(B)::QAB1(A),XQ(b)
- S(a);N_GUARD::QAB1(A),XQ(b)
- Refutation
- P(d);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(b);N_SPINQ(b),XQ(A)::R1(D)
- S(a);N_GUARD,XR(B)::QAB1(A),XQ(b)
- S(a);N_GUARD::QAB1(A),XQ(b)
- Refutation
- P(d);
- Try
- R(B);XQ(b)
- Threat
- QAB(A)+R(B),DCHECK
- Vars
- P(d);::QAB(A)+R(B),DCHECK,XP(d)
- Refutation
- S(a);P_SPINS(a),XR(B)
- Try
- Q(A);
- Vars
- S(a);OGATE,XR(B)::QAB(A)
- P(d);OGATEB::QAB(A)
- Refutation
- Q(b);N_SPINQ(b),XQ(A)
- Try
- Q(A);N_PINQ(b)
- Threat
- QAB(A)
- Vars
- P(d);OGATEB::QAB(A)
- Refutation
- Q(b);
- Try
- Actual
- B(C);
- Vars
- K(c);OGATEB,P-FLIGHT,XB(C)::QAR2(A)
- Q(b);N_SPINQ(b),XQ(A)::R1(D)
- S(a);N_GUARD,XR(B)::QAB1(A),XQ(b)
- P(e);SBLOCK,XB(C)::R(B)
- Q(b);::R1(D)
- S(a);N_GUARD::QAB1(A),XQ(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).