MESON Chess Problem Database
Problem Display
PID: 18219 (K2BBQ2/4Pp2/4k3/4b1n1/2P1n1P1/3N1N2/8/3R1R1b w - - 0 1)
Mansfield, Comins
Comm., Il Due Mosse, 1954
#2
11 + 6
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Kf6
- 2.Qh6#
- 1...Bd6
- 2.Sd4#
- 1...Bf6
- 2.Sf4#
- 1...Sf6
- 2.Sc5#
- 1...Kf6
- Tries
- 1.Sf4+?
- 1...Kf6
- 2.Qh6#
- 2.Qh8#
- 1...Bxf4!
- 1...Kf6
- 1.Sc5+?
- 1...Kf6
- 2.Qh6#
- 1...Sxc5!
- 1...Kf6
- 1.Ba4?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Kd6
- 2.e8Q#
- 2.e8R#
- 1...Kf6
- 2.Qh6#
- 1...Bxf3
- 2.e8Q#
- 2.e8R#
- 1...Sxf3
- 2.e8Q#
- 2.e8R#
- 1...Bg2
- 2.e8Q#
- 2.e8R#
- 1...Ba1
- 2.e8Q#
- 2.e8R#
- 1...Bb2
- 2.e8Q#
- 2.e8R#
- 1...Bh2
- 2.e8Q#
- 2.e8R#
- 1...Bc3
- 2.e8Q#
- 2.e8R#
- 1...Bg3
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.e8Q#
- 2.e8R#
- 1...Bf4
- 2.e8Q#
- 2.e8R#
- 1...Bd6
- 2.Sd4#
- 1...Bf6
- 2.Sf4#
- 1...Bc7
- 2.e8Q#
- 2.e8R#
- 1...Bg7
- 2.e8Q#
- 2.e8R#
- 1...Bb8
- 2.e8Q#
- 2.e8R#
- 1...Bh8
- 2.e8Q#
- 2.e8R#
- 1...Sd2
- 2.e8Q#
- 2.e8R#
- 1...Sf2
- 2.e8Q#
- 2.e8R#
- 1...Sc3
- 2.e8Q#
- 2.e8R#
- 1...Sg3
- 2.e8Q#
- 2.e8R#
- 1...Sc5
- 2.e8Q#
- 2.e8R#
- 1...Sf6
- 2.Sc5#
- 1...Sh3
- 2.e8Q#
- 2.e8R#
- 1...Sh7
- 2.e8Q#
- 2.e8R#
- 1...f5
- 2.e8Q#
- 2.e8R#
- 1...f6
- 2.e8Q#
- 2.e8R#
- 1...Sd6!
- threat
- 1.Bb5?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Kd6
- 2.e8Q#
- 2.e8R#
- 1...Kf6
- 2.Qh6#
- 1...Bxf3
- 2.e8Q#
- 2.e8R#
- 1...Sxf3
- 2.e8Q#
- 2.e8R#
- 1...Bg2
- 2.e8Q#
- 2.e8R#
- 1...Ba1
- 2.e8Q#
- 2.e8R#
- 1...Bb2
- 2.e8Q#
- 2.e8R#
- 1...Bh2
- 2.e8Q#
- 2.e8R#
- 1...Bc3
- 2.e8Q#
- 2.e8R#
- 1...Bg3
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.e8Q#
- 2.e8R#
- 1...Bf4
- 2.e8Q#
- 2.e8R#
- 1...Bd6
- 2.Sd4#
- 1...Bf6
- 2.Sf4#
- 1...Bc7
- 2.e8Q#
- 2.e8R#
- 1...Bg7
- 2.e8Q#
- 2.e8R#
- 1...Bb8
- 2.e8Q#
- 2.e8R#
- 1...Bh8
- 2.e8Q#
- 2.e8R#
- 1...Sd2
- 2.e8Q#
- 2.e8R#
- 1...Sf2
- 2.e8Q#
- 2.e8R#
- 1...Sc3
- 2.e8Q#
- 2.e8R#
- 1...Sg3
- 2.e8Q#
- 2.e8R#
- 1...Sc5
- 2.e8Q#
- 2.e8R#
- 1...Sf6
- 2.Sc5#
- 1...Sh3
- 2.e8Q#
- 2.e8R#
- 1...Sh7
- 2.e8Q#
- 2.e8R#
- 1...f5
- 2.e8Q#
- 2.e8R#
- 1...f6
- 2.e8Q#
- 2.e8R#
- 1...Sd6!
- threat
- 1.Bd7+?
- 1...Kd6
- 2.e8Q#
- 2.e8B#
- 1...Kf6
- 2.Qh6#
- 1...Kxd7!
- 1...Kd6
- 1.Bxf7+?
- 1...Kd6
- 2.e8Q#
- 2.e8B#
- 1...Kf6
- 2.e8Q#
- 2.e8S#
- 2.e8B#
- 2.e8R#
- 1...Sxf7
- 2.e8Q#
- 1...Kd7!
- 1...Kd6
- 1.Qh6+?
- 1...Bf6
- 2.Sf4#
- 1...Sf6
- 2.Sc5#
- 1...f6!
- 1...Bf6
- 1.Qxf7+?
- 1...Kd6
- 2.Qd5#
- 1...Sxf7!
- 1...Kd6
- 1.Sf4+?
- Keys
- 1.Bc6!
- threat
- 2.e8Q#
- 2.e8R#
- 1...Kd6
- 2.e8Q#
- 1...Kf6
- 2.Qh6#
- 1...Bxf3
- 2.e8Q#
- 2.e8R#
- 1...Sxf3
- 2.e8Q#
- 2.e8R#
- 1...Sd6
- 2.Sxg5#
- 1...Bg2
- 2.e8Q#
- 2.e8R#
- 1...Ba1
- 2.e8Q#
- 2.e8R#
- 1...Bb2
- 2.e8Q#
- 2.e8R#
- 1...Bh2
- 2.e8Q#
- 2.e8R#
- 1...Bc3
- 2.e8Q#
- 2.e8R#
- 1...Bg3
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.e8Q#
- 2.e8R#
- 1...Bf4
- 2.e8Q#
- 2.e8R#
- 1...Bd6
- 2.Sd4#
- 1...Bf6
- 2.Sf4#
- 1...Bc7
- 2.e8Q#
- 2.e8R#
- 1...Bg7
- 2.e8Q#
- 2.e8R#
- 1...Bb8
- 2.e8Q#
- 2.e8R#
- 1...Bh8
- 2.e8Q#
- 2.e8R#
- 1...Sd2
- 2.e8Q#
- 2.e8R#
- 1...Sf2
- 2.e8Q#
- 2.e8R#
- 1...Sc3
- 2.e8Q#
- 2.e8R#
- 1...Sg3
- 2.e8Q#
- 2.e8R#
- 1...Sc5
- 2.e8Q#
- 2.e8R#
- 1...Sf6
- 2.Sc5#
- 1...Sh3
- 2.e8Q#
- 2.e8R#
- 1...Sh7
- 2.e8Q#
- 2.e8R#
- 1...f5
- 2.e8Q#
- 2.e8R#
- 1...f6
- 2.e8Q#
- 2.e8R#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(e);P-FLIGHT,P_SPINP(f)::QAR2(K)
- B(c);N_GUARD,SBLOCK::S(D)
- B(c);N_GUARD,SBLOCK::S(C)
- S(b);N_GUARD,P_PINS(D),SBLOCK::S(C)
- Tries
- Try
- S(C);CHECK
- Refutation
- B(c);XS(C)
- Try
- S(C);CHECK
- Vars
- K(e);P-FLIGHT,P_SPINP(f)::QAR2(K)
- Refutation
- S(b);P_PINS(D),XS(C)
- Try
- B(J);
- Threat
- P=Q
- Vars
- K(e);P-FLIGHT::P=Q
- K(e);P-FLIGHT,P_SPINP(f)::QAR2(K)
- B(a);XS(D)::P=Q
- S(d);XS(D)::P=Q
- B(a);::P=Q
- B(c);::P=Q
- B(c);N_GUARD,SBLOCK::S(D)
- B(c);N_GUARD,SBLOCK::S(C)
- S(b);P_PINS(D)::P=Q
- S(b);N_GUARD,P_PINS(D),SBLOCK::S(C)
- S(d);::P=Q
- P(f);::P=Q
- Refutation
- S(b);P_PINS(D)
- Try
- B(J);
- Threat
- P=Q
- Vars
- K(e);P-FLIGHT::P=Q
- K(e);P-FLIGHT,P_SPINP(f)::QAR2(K)
- B(a);XS(D)::P=Q
- S(d);XS(D)::P=Q
- B(a);::P=Q
- B(c);::P=Q
- B(c);N_GUARD,SBLOCK::S(D)
- B(c);N_GUARD,SBLOCK::S(C)
- S(b);P_PINS(D)::P=Q
- S(b);N_GUARD,P_PINS(D),SBLOCK::S(C)
- S(d);::P=Q
- P(f);::P=Q
- Refutation
- S(b);P_PINS(D)
- Try
- B(J);CHECK
- Vars
- K(e);P-FLIGHT::P=Q
- K(e);P-FLIGHT,P_SPINP(f)::QAR2(K)
- Refutation
- K(e);S_FLIGHT,XB(J)
- Try
- B(J);CHECK,XP(f)
- Vars
- K(e);P-FLIGHT::P=Q
- S(d);XB(J)::P=Q
- Refutation
- K(e);S_FLIGHT
- Try
- Q(K);CHECK
- Vars
- B(c);P_SPINB(c)::S(C)
- S(b);P_PINS(D),P_SPINS(b)::S(C)
- Refutation
- P(f);P_SPINP(f)
- Try
- Q(K);CHECK,XP(f)
- Vars
- K(e);OGATE,P-FLIGHT::QAR1(K)
- Refutation
- S(d);XQ(K)
- Try
- Actual
- B(J);
- Threat
- P=Q
- Vars
- K(e);P-FLIGHT::P=Q
- K(e);P-FLIGHT,P_SPINP(f)::QAR2(K)
- B(a);XS(D)::P=Q
- S(d);XS(D)::P=Q
- S(b);N_GUARD,SBLOCK::S(D),XS(d)
- B(a);::P=Q
- B(c);::P=Q
- B(c);N_GUARD,SBLOCK::S(D)
- B(c);N_GUARD,SBLOCK::S(C)
- S(b);::P=Q
- S(b);N_GUARD,SBLOCK::S(C)
- S(d);::P=Q
- P(f);::P=Q
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).