MESON Chess Problem Database
Problem Display
PID: 247918 (2Q2N2/B7/3bPP1r/2p1k1p1/5RP1/8/B3KN2/4n3 w - - 0 1)
Willmott, Arthur
The Problemist, 1990
#2
10 + 6
| 3713 | Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sg6#
- 1...Rh2
- 2.Sg6#
- 1...Rh3
- 2.Sg6#
- 1...Rh4
- 2.Sg6#
- 1...Rh5
- 2.Sg6#
- 1...Rxf6
- 2.Re4#
- 1...Rg6
- 2.Sxg6#
- 1...Rh7
- 2.Sg6#
- 1...Rh8
- 2.Sg6#
- 1...Bc7
- 2.Qxc7#
- 1...Bb8
- 2.Bxb8#
- 2.Qxb8#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...c4
- 2.Rf5#
- 1...Rh1
- Tries
- 1.Bxc5?
- threat
- 2.Rf5#
- 1...Kxf4
- 2.Bxd6#
- 1...Rxf6
- 2.Re4#
- 1...gxf4
- 2.Sd7#
- 1...Bxc5!
- threat
- 1.Qd7?
- 1...Kxf4
- 2.Qxd6#
- 1...Rxf6
- 2.Re4#
- 1...Bxf8
- 2.Rf5#
- 1...c4
- 2.Rf5#
- 1...Rh1
- 2.Sg6#
- 1...Rh2
- 2.Sg6#
- 1...Rh3
- 2.Sg6#
- 1...Rh4
- 2.Sg6#
- 1...Rh5
- 2.Sg6#
- 1...Rg6
- 2.Sxg6#
- 1...Rh7
- 2.Sg6#
- 1...Rh8
- 2.Sg6#
- 1...Bc7
- 2.Rf5#
- 2.Qxc7#
- 1...Be7
- 2.Rf5#
- 1...Bb8
- 2.Bxb8#
- 2.Rf5#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...gxf4!
- 1...Kxf4
- 1.Qxc5+?
- 1...Kxf4
- 2.Qe3#
- 2.Qxd6#
- 1...Bxc5!
- 1...Kxf4
- 1.Qd8?
- threat
- 2.Re4#
- 1...Kxf4
- 2.Qxd6#
- 1...c4
- 2.Rf5#
- 1...Be7
- 2.Rf5#
- 1...gxf4!
- threat
- 1.Bxc5?
- Keys
- 1.Qb8!
- 1...Kxf4
- 2.Qxd6#
- 1...Rxf6
- 2.Re4#
- 1...Bxb8
- 2.Bxb8#
- 1...gxf4
- 2.Qb2#
- 1...Bc7
- 2.Qxc7#
- 1...c4
- 2.Rf5#
- 1...Rh1
- 2.Sg6#
- 1...Rh2
- 2.Sg6#
- 1...Rh3
- 2.Sg6#
- 1...Rh4
- 2.Sg6#
- 1...Rh5
- 2.Sg6#
- 1...Rg6
- 2.Sxg6#
- 1...Rh7
- 2.Sg6#
- 1...Rh8
- 2.Sg6#
- 1...Sc2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Kxf4
- 1.Qb8!
Anticipated by 57021(1900)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::S(J)
- R(f);N_GUARD,P_PINS(C)::S(J)
- R(f);SBLOCK,XP(G)::R1(D)
- R(f);N_GUARD::S(J),XR(f)
- B(e);OGATEB::QAB(I),XB(e)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(b);::R1(D)
- Tries
- Try
- B(H);XP(b)
- Threat
- R1(D)
- Vars
- K(c);S_FLIGHT,XR(D)::B(H),XB(e)
- R(f);SBLOCK,XP(G)::R1(D)
- P(d);SBLOCK,XR(D)::S(J)
- Refutation
- B(e);XB(H)
- Try
- Q(I);
- Vars
- K(c);S_FLIGHT,XR(D)::QAB(I),XB(e)
- R(f);SBLOCK,XP(G)::R1(D)
- B(e);XS(J)::R1(D)
- P(b);::R1(D)
- R(f);N_GUARD::S(J)
- R(f);N_GUARD,P_PINS(C)::S(J)
- R(f);N_GUARD::S(J),XR(f)
- B(e);::R1(D)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- P(d);XR(D)
- Try
- Q(I);CHECK,XP(b)
- Refutation
- B(e);XQ(I)
- Try
- Q(I);
- Threat
- R1(D)
- Vars
- K(c);S_FLIGHT,XR(D)::QAB(I),XB(e)
- P(b);::R1(D)
- B(e);::R1(D)
- Refutation
- P(d);XR(D)
- Try
- Actual
- Q(I);P_PINB(e)
- Vars
- K(c);S_FLIGHT,XR(D)::QAB(I),XB(e)
- R(f);SBLOCK,XP(G)::R1(D)
- B(e);N_SPINB(e),OGATE,XQ(I)::B(H),XB(e)
- P(d);SBLOCK,XR(D)::QAB(I)
- B(e);OGATEB::QAB(I),XB(e)
- P(b);::R1(D)
- R(f);N_GUARD::S(J)
- R(f);N_GUARD,P_PINS(C)::S(J)
- R(f);N_GUARD::S(J),XR(f)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
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).