MESON Chess Problem Database
Problem Display
PID: 70025 (1q1R1b2/5N1K/3P1P1p/3kNB1Q/np2pP2/1P2B3/2r5/1nR5 w - - 0 1)
Ahues, Herbert Siegfried Oskar
The Problemist, 2006
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.bxc4#
- 1...Rc4
- Tries
- 1.Sd3?
- threat
- 2.Bd7#
- 1...Kc6
- 2.Bxe4#
- 1...Qxd6
- 2.Sxb4#
- 1...exd3
- 2.Qf3#
- 1...Rg2
- 2.Bg4#
- 1...Rh2
- 2.Bh3#
- 1...Bxd6!
- threat
- 1.Sg6?
- threat
- 2.Bd7#
- 1...Kc6
- 2.Bxe4#
- 1...Bxd6
- 2.Se7#
- 1...Rg2
- 2.Bg4#
- 1...Rh2
- 2.Bh3#
- 1...Qxd6!
- threat
- 1.Bxe4+?
- 1...Ke6
- 2.Qf5#
- 1...Kxe4!
- 1...Ke6
- 1.Sd3?
- Keys
- 1.Sc6!
- threat
- 2.Bd7#
- 1...Kxc6
- 2.Bxe4#
- 1...Qxd6
- 2.Sxb4#
- 1...Bxd6
- 2.Se7#
- 1...Rg2
- 2.Bg4#
- 1...Rh2
- 2.Bh3#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- R(b);OGATE::P(B),XR(b)
- Tries
- Try
- S(E);
- Threat
- QAR(G)+B(F)
- Vars
- K(f);P_SPINR(b),S_FLIGHT::B(F),XP(e)
- Q(h);N_GUARD,P_SPINQ(h),XP(H)::S(E),XP(d)
- P(e);OGATEB,XS(E)::QAB(G)
- R(b);::QAR(G)+B(F)
- Refutation
- B(i);P_SPINB(i),XP(H)
- Try
- S(E);
- Threat
- QAR(G)+B(F)
- Vars
- K(f);P_SPINR(b),S_FLIGHT::B(F),XP(e)
- B(i);N_GUARD,P_SPINB(i),XP(H)::S(E)
- R(b);::QAR(G)+B(F)
- Refutation
- Q(h);P_SPINQ(h),XP(H)
- Try
- B(F);CHECK,XP(e)
- Vars
- K(f);S_FLIGHT::QAB1(G)
- Refutation
- K(f);S_FLIGHT,XB(F)
- Try
- Actual
- S(E);
- Threat
- QAR(G)+B(F)
- Vars
- K(f);P_SPINR(b),S_FLIGHT,XS(E)::B(F),XP(e)
- Q(h);N_GUARD,P_SPINQ(h),XP(H)::S(E),XP(d)
- B(i);N_GUARD,P_SPINB(i),XP(H)::S(E)
- R(b);::QAR(G)+B(F)
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).