MESON Chess Problem Database
Problem Display
PID: 143892 (5rr1/3p1N2/b4k1p/2R1N3/q1pBQ1P1/1p6/8/2b2K2 w - - 0 1)
Dobbs, Gilbert S
BCPS, 1934
#2
7 + 10
| 14868 | Pirnie Collection | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Kg7
- 2.Qg6#
- 1...Rxf7
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sc6#
- 2.Sg6#
- 2.Sxd7#
- 1...Kg7
- Tries
- 1.Sd8?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sec6#
- 2.Sg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Kg5+
- 2.Sf3#
- 1...Ke7+
- 2.Sef7#
- 1...Kg7+
- 2.Sef7#
- 1...c3+
- 2.Sc4#
- 1...Qc6
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sexc6#
- 2.Sg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Qa1
- 2.Sxd7#
- 1...Rf7
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sec6#
- 2.Sg6#
- 2.Sxd7#
- 2.Sexf7#
- 1...Re8
- 2.Sxd7#
- 1...Rg5
- 2.Sxd7#
- 1...Rg6
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sec6#
- 2.Sxg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Bb2
- 2.Sxd7#
- 1...Be3
- 2.Sxd7#
- 1...Bf4
- 2.Sxd7#
- 1...d5
- 2.Sf3#
- 2.Sef7#
- 1...d6
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sec6#
- 2.Sg6#
- 2.Sd7#
- 2.Sef7#
- 1...Rxd8!
- threat
- 1.Sh8?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sc6#
- 2.Seg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Kg5+
- 2.Sf3#
- 1...Ke6+
- 2.Sef7#
- 1...Ke7+
- 2.Sef7#
- 1...Kg7+
- 2.Sef7#
- 1...c3+
- 2.Sc4#
- 1...Qc6
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sxc6#
- 2.Seg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Qa1
- 2.Sxd7#
- 1...Rf7
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sc6#
- 2.Seg6#
- 2.Sxd7#
- 2.Sexf7#
- 1...Re8
- 2.Sxd7#
- 1...Rg5
- 2.Sxd7#
- 1...Rg6
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sc6#
- 2.Sexg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Bb2
- 2.Sxd7#
- 1...Be3
- 2.Sxd7#
- 1...Bf4
- 2.Sxd7#
- 1...d5
- 2.Sf3#
- 2.Sef7#
- 1...d6
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sc6#
- 2.Seg6#
- 2.Sd7#
- 2.Sef7#
- 1...Rxh8!
- threat
- 1.Qf5+?
- 1...Kg7
- 2.Sd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Sc6#
- 2.Sxd7#
- 2.Qg6#
- 1...Ke7!
- 1...Kg7
- 1.Sd8?
- Keys
- 1.Sd6!
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sexc4#
- 2.Sc6#
- 2.Sg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Kg5+
- 2.Sf3#
- 1...Ke6+
- 2.Sef7#
- 1...Ke7+
- 2.Sef7#
- 1...Kg7+
- 2.Sef7#
- 1...c3+
- 2.Sec4#
- 1...Qc6
- 2.Sd3#
- 2.Sf3#
- 2.Sexc4#
- 2.Sxc6#
- 2.Sg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Qa1
- 2.Sxd7#
- 1...Rf7
- 2.Sd3#
- 2.Sf3#
- 2.Sexc4#
- 2.Sc6#
- 2.Sg6#
- 2.Sxd7#
- 2.Sexf7#
- 1...Re8
- 2.Sxd7#
- 1...Rg5
- 2.Sxd7#
- 1...Rg6
- 2.Sd3#
- 2.Sf3#
- 2.Sexc4#
- 2.Sc6#
- 2.Sxg6#
- 2.Sxd7#
- 2.Sef7#
- 1...Bb2
- 2.Sxd7#
- 1...Be3
- 2.Sxd7#
- 1...Bf4
- 2.Sxd7#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- K(f);P_PINS(G),S_FLIGHT::QAR1(C)
- Tries
- Try
- S(G);
- Threat
- DUALS(7)
- Vars
- K(f);CHECK,S_FLIGHT::R(E)+S(F),DCHECK
- K(f);CHECK,S_FLIGHT::QAR(C)+S(F)
- K(f);CHECK,S_FLIGHT::B(B)+S(F)
- P(d);CHECK::B(B)+S(F)
- Q(c);::B(B)+S(F),DCHECK,XP(h)
- R(i);::B(B)+S(F),DCHECK,XP(h)
- R(j);::B(B)+S(F),DCHECK,XP(h)
- B(a);::B(B)+S(F),DCHECK,XP(h)
- Refutation
- R(i);XS(G)
- Try
- S(G);
- Threat
- DUALS(7)
- Vars
- K(f);CHECK,S_FLIGHT::R(E)+S(F),DCHECK
- K(f);CHECK,P-FLIGHT::QAR(C)+S(F)
- K(f);CHECK,S_FLIGHT::QAR(C)+S(F)
- K(f);CHECK,S_FLIGHT::B(B)+S(F)
- P(d);CHECK::B(B)+S(F)
- Q(c);::B(B)+S(F),DCHECK,XP(h)
- R(i);::B(B)+S(F),DCHECK,XP(h)
- R(j);::B(B)+S(F),DCHECK,XP(h)
- B(a);::B(B)+S(F),DCHECK,XP(h)
- Refutation
- R(j);XS(G)
- Try
- Q(C);CHECK
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- S(G);
- Threat
- DUALS(7)
- Vars
- K(f);CHECK,S_FLIGHT::R(E)+S(F),DCHECK
- K(f);CHECK,P-FLIGHT::QAR(C)+S(F)
- K(f);CHECK,S_FLIGHT::QAR(C)+S(F)
- K(f);CHECK,S_FLIGHT::B(B)+S(F)
- P(d);CHECK::B(B)+S(F)
- Q(c);::B(B)+S(F),DCHECK,XP(h)
- R(i);::B(B)+S(F),DCHECK,XP(h)
- R(j);::B(B)+S(F),DCHECK,XP(h)
- B(a);::B(B)+S(F),DCHECK,XP(h)
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).