MESON Chess Problem Database
Problem Display
PID: 120966 (2K5/1BP3n1/4P1RN/BP2k2p/b4p1P/1p2P3/4Q3/b3nRN1 w - - 0 1)
Stubbs, Charles Francis
Montreal Gazette, 1893
#2
13 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sf5
- 2.Sf7#
- 1...f3
- 2.Qh2#
- 1...Sf5
- Tries
- 1.Sf3+?
- 1...Kd6
- 2.Bb4#
- 1...Sxf3!
- 1...Kd6
- 1.Qd1?
- threat
- 2.Qd5#
- 2.exf4#
- 1...Sxe6
- 2.Qd5#
- 1...fxe3
- 2.Sf7#
- 2.Qd5#
- 1...Bd4
- 2.Qxd4#
- 1...Sg2
- 2.Sf3#
- 2.Qd5#
- 1...Sf3
- 2.Sxf3#
- 2.Qd5#
- 1...f3
- 2.Qd5#
- 1...Sd3!
- threat
- 1.Qd3?
- threat
- 2.Sf7#
- 2.Qd5#
- 2.exf4#
- 1...Sxe6
- 2.Sf7#
- 2.Qd5#
- 1...fxe3
- 2.Sf7#
- 2.Qd5#
- 1...Bd4
- 2.Sf7#
- 2.Qxd4#
- 1...Sg2
- 2.Sf3#
- 2.Sf7#
- 2.Qd5#
- 1...Sf3
- 2.Sxf3#
- 2.Sf7#
- 2.Qd5#
- 1...f3
- 2.Sf7#
- 2.Qd5#
- 1...Sxd3!
- threat
- 1.Qc4?
- threat
- 2.Qd5#
- 2.Qxf4#
- 2.Qc5#
- 1...Sxe6
- 2.Rxe6#
- 2.Qd5#
- 2.Qxe6#
- 1...fxe3
- 2.Sf7#
- 2.Qd5#
- 2.Qf4#
- 2.Qc5#
- 1...Bd4
- 2.Qd5#
- 2.Qxd4#
- 1...Sg2
- 2.Qd5#
- 2.Qc5#
- 1...Sd3
- 2.Qd5#
- 1...f3
- 2.Qd5#
- 2.Qf4#
- 2.Qc5#
- 1...Kd6!
- threat
- 1.Qxh5+?
- 1...Kd6
- 2.Bb4#
- 1...Sf5
- 2.Sf7#
- 1...Sxh5!
- 1...Kd6
- 1.Qb2+?
- 1...Kd6
- 2.Bb4#
- 1...Bxb2!
- 1...Kd6
- 1.Qd2?
- threat
- 2.Qd5#
- 2.exf4#
- 1...Sxe6
- 2.Qd5#
- 1...fxe3
- 2.Sf7#
- 2.Qd5#
- 1...Bd4
- 2.Qxd4#
- 1...Sg2
- 2.Sf3#
- 2.Qd5#
- 1...f3
- 2.Qh2#
- 2.Qd5#
- 1...Sd3!
- threat
- 1.exf4+?
- 1...Kd6
- 2.Bb4#
- 1...Kd4!
- 1...Kd6
- 1.e7?
- 1...Bxb5
- 2.Qxb5#
- 1...fxe3
- 2.Qxe3#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.exf4#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sf5
- 2.Sf7#
- 1...Se8
- 2.Qxh5#
- 1...b2
- 2.Bc3#
- 1...f3
- 2.Qh2#
- 1...Se6!
- 1...Bxb5
- 1.Sf3+?
- Keys
- 1.Kd7!
- 1...Bxb5+
- 2.Qxb5#
- 1...Sxe6
- 2.Rxe6#
- 1...fxe3
- 2.Qxe3#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.exf4#
- 1...Sc2
- 2.Sf3#
- 1...Sg2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sf5
- 2.Sf7#
- 1...Se8
- 2.Qxh5#
- 1...b2
- 2.Bc3#
- 1...f3
- 2.Qh2#
- 1...Bxb5+
- 1.Kd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- S(h);SBLOCK::S(J)
- P(e);OGATEB::QAB(C)
- Tries
- Try
- S(B);CHECK
- Vars
- K(f);S_FLIGHT::B(F)
- Refutation
- S(b);XS(B)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(h);XP(H)::QAR1(C)
- B(a);N_GUARD::QAB1(C),XB(a)
- P(e);::QAR1(C)
- Refutation
- S(b);
- Try
- Q(C);
- Threat
- DUALS(3)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(b);::QAR1(C)
- Refutation
- K(f);S_FLIGHT
- Try
- Q(C);CHECK,XP(g)
- Vars
- K(f);S_FLIGHT::B(F)
- S(h);P_SPINS(h)::S(J)
- Refutation
- S(h);XQ(C)
- Try
- Q(C);CHECK
- Vars
- K(f);S_FLIGHT::B(F)
- Refutation
- B(a);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(h);XP(H)::QAR1(C)
- B(a);N_GUARD::QAB1(C),XB(a)
- Refutation
- S(b);
- Try
- P(D);CHECK,XP(e)
- Vars
- K(f);S_FLIGHT::B(F)
- Refutation
- K(f);S_FLIGHT
- Try
- P(H);
- Vars
- B(d);OGATE,XP(G)::QAR(C),XB(d)
- P(e);OGATE,P_SPINP(e),XP(D)::QAR2(C),XP(e)
- B(a);N_GUARD::QAB(C),XB(a)
- B(a);N_GUARD::B(F),XB(a)
- B(a);SBLOCK::QAR(C)+P(D)DCHECK,XP(e)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- S(h);SBLOCK::S(J)
- S(h);N_GUARD::QAR(C),XP(g)
- P(c);S_CUTB(a)::B(F)
- P(e);OGATEB::QAB(C)
- Refutation
- S(h);
- Try
- Actual
- K(M);P_SPINP(G),S_FLIGHT
- Vars
- B(d);CHECK,OGATE,XP(G)::QAR(C),XB(d)
- S(h);OGATE,XP(H)::R1(I),XS(h)
- P(e);OGATE,P_SPINP(e),XP(D)::QAR2(C),XP(e)
- B(a);N_GUARD::QAB(C),XB(a)
- B(a);N_GUARD::B(F),XB(a)
- B(a);SBLOCK::QAR(C)+P(D)DCHECK,XP(e)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- S(h);SBLOCK::S(J)
- S(h);N_GUARD::QAR(C),XP(g)
- P(c);S_CUTB(a)::B(F)
- P(e);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).