MESON Chess Problem Database
Problem Display
PID: 210412 (2R1KB2/1p6/pPPp4/3N2Qp/Bpkb2bR/2N1Pp1q/2P2n2/8 w - - 0 1)
Millins, Edgar
The Observer, 1920
(First published on Sun Nov 14 1920)
#2
12 + 11
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxc3
- 2.cxb7#
- 1...Bc5
- 2.Bb3#
- 1...Be5
- 2.cxb7#
- 1...Bf6
- 2.cxb7#
- 1...Bg7
- 2.cxb7#
- 1...Bh8
- 2.cxb7#
- 1...Bd7+
- 2.cxd7#
- 1...Bxc3
- Tries
- 1.Qf4?
- threat
- 2.Qxd4#
- 1...Bd7+
- 2.cxd7#
- 1...Kc5
- 2.Qxd4#
- 1...Se4!
- threat
- 1.cxb7+?
- 1...Bc5
- 2.Bb3#
- 1...Bxc8!
- 1...Bc5
- 1.Qf4?
- Keys
- 1.Qe5!
- threat
- 2.Qxd4#
- 1...Bd7+
- 2.cxd7#
- 1...Kc5
- 2.Qxd4#
- 1...Bxc3
- 2.cxb7#
- 1...Bxe3
- 2.Sxe3#
- 1...Bxe5
- 2.cxb7#
- 1...Bxb6
- 2.Sxb6#
- 1...dxe5
- 2.Bb3#
- 1...Bc5
- 2.Bb3#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- B(f);N_GUARD,P_SPINB(g),XS(B)::R(J)+P(I),XP(k)
- B(f);P_SPINB(g),SBLOCK::B(D)
- B(f);N_GUARD,P_SPINB(g)::R(J)+P(I),XP(k)
- B(g);CHECK,OGATE,P_SPINB(f)::R(J)+P(I),XB(g)
- Tries
- Try
- Q(G);P_PINB(f)
- Threat
- QAR1(G),XB(f)
- Vars
- B(g);CHECK,OGATE::R(J)+P(I),XB(g)
- K(e);N_SPINB(f),P-FLIGHT,P_SPINP(j)::QAB1(G),XB(f)
- Refutation
- S(a);N_SPINB(f)
- Try
- P(I);CHECK,XP(k)
- Vars
- B(f);P_SPINB(g)::B(D)
- Refutation
- B(g);P_SPINB(f),XR(J)
- Try
- Actual
- Q(G);
- Threat
- QAR1(G),XB(f)
- Vars
- B(g);CHECK,OGATE,P_SPINB(f)::R(J)+P(I),XB(g)
- K(e);P-FLIGHT,P_SPINP(j)::QAB1(G),XB(f)
- B(f);N_GUARD,P_SPINB(g),XS(B)::R(J)+P(I),XP(k)
- B(f);P_SPINB(g),XP(C)::S(F),XB(f)
- B(f);N_GUARD,P_SPINB(g),XQ(G)::R(J)+P(I),XP(k)
- B(f);P_SPINB(g),XP(H)::S(F),XB(f)
- P(j);XQ(G)::B(D)
- B(f);P_SPINB(g),SBLOCK::B(D)
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).