MESON Chess Problem Database
Problem Display
PID: 101027 (3BB3/3R3p/2p1kbqR/2Pp1n2/5P1N/1P1Q2N1/8/1K6 w - - 0 1)
Stillingfleet Johnson, George
Good Companions, 1921
#2
11 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qh5
- 2.Rxf6#
- 1...Qf7
- 2.Qxf5#
- 1...Qxe8
- 2.Qxf5#
- 1...Qxg3
- 2.Rxf6#
- 2.Qxf5#
- 1...Qg4
- 2.Rxf6#
- 1...Qxh6
- 2.Qxf5#
- 1...Qg7
- 2.Qxf5#
- 1...Qg8
- 2.Rxf6#
- 2.Qxf5#
- 1...Ba1
- 2.Qxf5#
- 1...Bb2
- 2.Qxf5#
- 1...Bc3
- 2.Qxf5#
- 1...Bd4
- 2.Qxf5#
- 1...Bxh4
- 2.Qxf5#
- 1...Be5
- 2.Qxf5#
- 1...Bg5
- 2.Qxf5#
- 1...Be7
- 2.Qxf5#
- 1...Bg7
- 2.Qxf5#
- 1...Bxd8
- 2.Qxf5#
- 1...Bh8
- 2.Qxf5#
- 1...Se3
- 2.Rd6#
- 1...Sxg3
- 2.Rd6#
- 1...Sd4
- 2.Rd6#
- 1...Sxh4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sxh6
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...d4
- 2.Qc4#
- 1...Qh5
- Tries
- 1.Ka2?
- 1...Qxe8
- 2.Qxf5#
- 1...Qxg3
- 2.Rxf6#
- 2.Qxf5#
- 1...Qxh6
- 2.Qxf5#
- 1...Bxh4
- 2.Qxf5#
- 1...Bxd8
- 2.Qxf5#
- 1...Sxg3
- 2.Rd6#
- 1...Sxh4
- 2.Rd6#
- 1...Sxh6
- 2.Rd6#
- 1...Be7
- 2.Qxf5#
- 1...Qh5
- 2.Rxf6#
- 1...Qf7
- 2.Qxf5#
- 1...Qg4
- 2.Rxf6#
- 1...Qg7
- 2.Qxf5#
- 1...Qg8
- 2.Rxf6#
- 2.Qxf5#
- 1...Ba1
- 2.Qxf5#
- 1...Bb2
- 2.Qxf5#
- 1...Bc3
- 2.Qxf5#
- 1...Bd4
- 2.Qxf5#
- 1...Be5
- 2.Qxf5#
- 1...Bg5
- 2.Qxf5#
- 1...Bg7
- 2.Qxf5#
- 1...Bh8
- 2.Qxf5#
- 1...Se3
- 2.Rd6#
- 1...Sd4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...d4
- 2.Qc4#
- 1...Qg5!
- 1...Qxe8
- 1.Sg2?
- 1...Qxe8
- 2.Qxf5#
- 1...Qxg3
- 2.Rxf6#
- 1...Qxh6
- 2.Qxf5#
- 1...Bxd8
- 2.Qxf5#
- 1...Sxg3
- 2.Rd6#
- 1...Sxh6
- 2.Rd6#
- 1...Be7
- 2.Qxf5#
- 1...Qh5
- 2.Rxf6#
- 1...Qf7
- 2.Qxf5#
- 1...Qg4
- 2.Rxf6#
- 1...Qg7
- 2.Qxf5#
- 1...Qg8
- 2.Rxf6#
- 2.Qxf5#
- 1...Ba1
- 2.Qxf5#
- 1...Bb2
- 2.Qxf5#
- 1...Bc3
- 2.Qxf5#
- 1...Bd4
- 2.Qxf5#
- 1...Bh4
- 2.Qxf5#
- 1...Be5
- 2.Qxf5#
- 1...Bg5
- 2.Qxf5#
- 1...Bg7
- 2.Qxf5#
- 1...Bh8
- 2.Qxf5#
- 1...Se3
- 2.Rd6#
- 1...Sd4
- 2.Rd6#
- 1...Sh4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...d4
- 2.Qc4#
- 1...Qg5!
- 1...Qxe8
- 1.Sxg6?
- threat
- 2.Sf8#
- 2.Qxf5#
- 1...Sxg3
- 2.Sf8#
- 2.Rd6#
- 1...Sxh6
- 2.Sf8#
- 2.Rd6#
- 1...Se3
- 2.Sf8#
- 2.Rd6#
- 1...Sd4
- 2.Sf8#
- 2.Rd6#
- 1...Sh4
- 2.Sf8#
- 2.Rd6#
- 1...Sd6
- 2.Sf8#
- 2.Rxd6#
- 1...Se7
- 2.Sf8#
- 2.Rd6#
- 1...Sg7
- 2.Sf8#
- 2.Rd6#
- 1...hxg6!
- threat
- 1.Bf7+?
- 1...Qxf7
- 2.Qxf5#
- 1...Kxd7!
- 1...Qxf7
- 1.Rxg6?
- threat
- 2.Rxf6#
- 2.Qxf5#
- 1...Sxg3
- 2.Rxf6#
- 2.Rd6#
- 2.Re7#
- 1...Sxh4
- 2.Rxf6#
- 2.Rd6#
- 2.Re7#
- 2.Qe2#
- 2.Qe3#
- 1...Se3
- 2.Rxf6#
- 2.Rd6#
- 2.Re7#
- 2.Qxe3#
- 1...Sd4
- 2.Rxf6#
- 2.Rd6#
- 2.Re7#
- 2.Qe3#
- 1...Sd6
- 2.Rxf6#
- 2.Rxd6#
- 2.Re7#
- 1...Sh6
- 2.Rxf6#
- 2.Rd6#
- 2.Re7#
- 2.Qe2#
- 2.Qe3#
- 1...Se7
- 2.Rd6#
- 2.Rxe7#
- 2.Qe2#
- 2.Qe3#
- 1...Sg7
- 2.Rxf6#
- 2.Rd6#
- 2.Re7#
- 2.Qe2#
- 2.Qe3#
- 1...hxg6!
- threat
- 1.Re7+?
- 1...Bxe7
- 2.Qxf5#
- 1...Sxe7!
- 1...Bxe7
- 1.Qc2?
- 1...Qxe8
- 2.Qxf5#
- 1...Qxg3
- 2.Rxf6#
- 2.Qxf5#
- 1...Qxh6
- 2.Qxf5#
- 1...Bxh4
- 2.Qxf5#
- 1...Bxd8
- 2.Qxf5#
- 1...Sxg3
- 2.Rd6#
- 1...Sxh4
- 2.Rd6#
- 1...Sxh6
- 2.Rd6#
- 1...Be7
- 2.Qxf5#
- 1...Qh5
- 2.Rxf6#
- 1...Qf7
- 2.Qxf5#
- 1...Qg4
- 2.Rxf6#
- 1...Qg7
- 2.Qxf5#
- 1...Qg8
- 2.Rxf6#
- 2.Qxf5#
- 1...Ba1
- 2.Qxf5#
- 1...Bb2
- 2.Qxf5#
- 1...Bc3
- 2.Qxf5#
- 1...Bd4
- 2.Qxf5#
- 1...Be5
- 2.Qxf5#
- 1...Bg5
- 2.Qxf5#
- 1...Bg7
- 2.Qxf5#
- 1...Bh8
- 2.Qxf5#
- 1...Se3
- 2.Rd6#
- 1...Sd4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...d4
- 2.Qc4#
- 1...Qg5!
- 1...Qxe8
- 1.Qe2+?
- 1...Be5
- 2.Qxe5#
- 1...Se3+!
- 1...Be5
- 1.Qe4+?
- 1...Be5
- 2.Qxf5#
- 2.Qxe5#
- 1...dxe4!
- 1...Be5
- 1.Qe3+?
- 1...Be5
- 2.Qxe5#
- 1...Sxe3+!
- 1...Be5
- 1.b4?
- 1...Qxe8
- 2.Qxf5#
- 1...Qxg3
- 2.Rxf6#
- 2.Qxf5#
- 1...Qxh6
- 2.Qxf5#
- 1...Bxh4
- 2.Qxf5#
- 1...Bxd8
- 2.Qxf5#
- 1...Sxg3
- 2.Rd6#
- 1...Sxh4
- 2.Rd6#
- 1...Sxh6
- 2.Rd6#
- 1...Be7
- 2.Qxf5#
- 1...Qh5
- 2.Rxf6#
- 1...Qf7
- 2.Qxf5#
- 1...Qg4
- 2.Rxf6#
- 1...Qg7
- 2.Qxf5#
- 1...Qg8
- 2.Rxf6#
- 2.Qxf5#
- 1...Ba1
- 2.Qxf5#
- 1...Bb2
- 2.Qxf5#
- 1...Bc3
- 2.Qxf5#
- 1...Bd4
- 2.Qxf5#
- 1...Be5
- 2.Qxf5#
- 1...Bg5
- 2.Qxf5#
- 1...Bg7
- 2.Qxf5#
- 1...Bh8
- 2.Qxf5#
- 1...Se3
- 2.Rd6#
- 1...Sd4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...d4
- 2.Qc4#
- 2.Qb3#
- 1...Qg5!
- 1...Qxe8
- 1.Ka2?
- Keys
- 1.Sf3!
- 1...Qxe8
- 2.Qxf5#
- 1...Qxg3
- 2.Rxf6#
- 1...Qxh6
- 2.Qxf5#
- 1...Bxd8
- 2.Qxf5#
- 1...Sxg3
- 2.Rd6#
- 1...Sxh6
- 2.Rd6#
- 1...Be7
- 2.Qxf5#
- 1...Qg5
- 2.Sxg5#
- 1...Qh5
- 2.Rxf6#
- 1...Qf7
- 2.Sg5#
- 2.Qxf5#
- 1...Qg4
- 2.Rxf6#
- 1...Qg7
- 2.Qxf5#
- 1...Qg8
- 2.Rxf6#
- 2.Qxf5#
- 1...Ba1
- 2.Sg5#
- 2.Qxf5#
- 1...Bb2
- 2.Sg5#
- 2.Qxf5#
- 1...Bc3
- 2.Sg5#
- 2.Qxf5#
- 1...Bd4
- 2.Sg5#
- 2.Qxf5#
- 1...Bh4
- 2.Qxf5#
- 1...Be5
- 2.Sg5#
- 2.Qxf5#
- 1...Bg5
- 2.Sxg5#
- 2.Qxf5#
- 1...Bg7
- 2.Sg5#
- 2.Qxf5#
- 1...Bh8
- 2.Sg5#
- 2.Qxf5#
- 1...Se3
- 2.Rd6#
- 1...Sd4
- 2.Rd6#
- 1...Sh4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...d4
- 2.Qc4#
- 1...Qxe8
- 1.Sf3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(f);OGATE,P_SPINB(e)::R1(H),XB(e)
- Q(f);N_GUARD,P_SPINB(e)::QAB1(C),XS(b)
- Q(f);N_GUARD,P_SPINB(e),XB(K)::QAB1(C),XS(b)
- Q(f);N_GUARD,XR(H)::QAB1(C),XS(b)
- B(e);P_SPINQ(f)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XS(F)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XB(J)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C)::R1(I)
- S(b);N_GUARD,P_PINQ(C),XS(D)::R1(I)
- S(b);N_GUARD,P_PINQ(C),XS(F)::R1(I)
- S(b);N_GUARD,P_PINQ(C)::R1(I),XS(b)
- S(b);N_GUARD,P_PINQ(C),XR(H)::R1(I)
- P(a);OGATEB::QAB(C)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- Q(f);N_GUARD,P_SPINB(e),XB(K)::QAB1(C),XS(b)
- Q(f);N_GUARD,XR(H)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XS(F)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XB(J)::QAB1(C),XS(b)
- S(b);N_GUARD,XS(D)::R1(I)
- S(b);N_GUARD,XS(F)::R1(I)
- S(b);N_GUARD,XR(H)::R1(I)
- B(e);P_SPINQ(f)::QAB1(C),XS(b)
- Q(f);OGATE,P_SPINB(e)::R1(H),XB(e)
- Q(f);N_GUARD,P_SPINB(e)::QAB1(C),XS(b)
- S(b);N_GUARD::R1(I)
- S(b);N_GUARD::R1(I),XS(b)
- P(a);OGATEB::QAB(C)
- Refutation
- Q(f);P_SPINB(e)
- Try
- S(F);
- Vars
- Q(f);N_GUARD,P_SPINB(e),XB(K)::QAB1(C),XS(b)
- Q(f);OGATE,P_SPINB(e),XS(D)::R1(H),XB(e)
- Q(f);N_GUARD,XR(H)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XB(J)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C),XS(D)::R1(I)
- S(b);N_GUARD,P_PINQ(C),XR(H)::R1(I)
- B(e);P_SPINQ(f)::QAB1(C),XS(b)
- Q(f);OGATE,P_SPINB(e)::R1(H),XB(e)
- Q(f);N_GUARD,P_SPINB(e)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C)::R1(I)
- S(b);N_GUARD,P_PINQ(C)::R1(I),XS(b)
- P(a);OGATEB::QAB(C)
- Refutation
- Q(f);P_SPINB(e)
- Try
- S(F);XQ(f)
- Threat
- DUALS(2)
- Refutation
- P(g);XS(F)
- Try
- B(K);CHECK
- Vars
- Q(f);P_SPINB(e),XB(K)::QAB1(C),XS(b)
- Refutation
- K(d);P_SPINP(a),S_FLIGHT,XR(I)
- Try
- R(H);P_PINB(e),XQ(f)
- Threat
- DUALS(2)
- Refutation
- P(g);N_SPINB(e),XR(H)
- Try
- R(I);CHECK
- Vars
- B(e);P_SPINQ(f),XR(I)::QAB1(C),XS(b)
- Refutation
- S(b);P_PINQ(C),XR(I)
- Try
- Q(C);
- Vars
- Q(f);N_GUARD,P_SPINB(e),XB(K)::QAB1(C),XS(b)
- Q(f);N_GUARD,XR(H)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XS(F)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XB(J)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C),XS(D)::R1(I)
- S(b);N_GUARD,P_PINQ(C),XS(F)::R1(I)
- S(b);N_GUARD,P_PINQ(C),XR(H)::R1(I)
- B(e);P_SPINQ(f)::QAB1(C),XS(b)
- Q(f);OGATE,P_SPINB(e)::R1(H),XB(e)
- Q(f);N_GUARD,P_SPINB(e)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C)::R1(I)
- S(b);N_GUARD,P_PINQ(C)::R1(I),XS(b)
- P(a);OGATEB::QAB(C)
- Refutation
- Q(f);P_SPINB(e)
- Try
- Q(C);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e),P_SPINQ(f)::QAR1(C),XB(e)
- Refutation
- S(b);CHECK,P_SPINS(b)
- Try
- Q(C);CHECK
- Refutation
- P(a);XQ(C)
- Try
- Q(C);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e),P_SPINQ(f)::QAR1(C),XB(e)
- Refutation
- S(b);CHECK,XQ(C)
- Try
- P(B);
- Vars
- Q(f);N_GUARD,P_SPINB(e),XB(K)::QAB1(C),XS(b)
- Q(f);N_GUARD,XR(H)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XS(F)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XB(J)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C),XS(D)::R1(I)
- S(b);N_GUARD,P_PINQ(C),XS(F)::R1(I)
- S(b);N_GUARD,P_PINQ(C),XR(H)::R1(I)
- B(e);P_SPINQ(f)::QAB1(C),XS(b)
- Q(f);OGATE,P_SPINB(e)::R1(H),XB(e)
- Q(f);N_GUARD,P_SPINB(e)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C)::R1(I)
- S(b);N_GUARD,P_PINQ(C)::R1(I),XS(b)
- Refutation
- Q(f);P_SPINB(e)
- Try
- Actual
- S(F);
- Vars
- Q(f);N_GUARD,P_SPINB(e),XB(K)::QAB1(C),XS(b)
- Q(f);OGATE,P_SPINB(e),XS(D)::R1(H),XB(e)
- Q(f);N_GUARD,XR(H)::QAB1(C),XS(b)
- B(e);P_SPINQ(f),XB(J)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C),XS(D)::R1(I)
- S(b);N_GUARD,P_PINQ(C),XR(H)::R1(I)
- B(e);P_SPINQ(f)::QAB1(C),XS(b)
- Q(f);N_GUARD,P_SPINB(e)::S(F),XQ(f)
- Q(f);OGATE,P_SPINB(e)::R1(H),XB(e)
- Q(f);N_GUARD,P_SPINB(e)::QAB1(C),XS(b)
- S(b);N_GUARD,P_PINQ(C)::R1(I)
- S(b);N_GUARD,P_PINQ(C)::R1(I),XS(b)
- P(a);OGATEB::QAB(C)
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).