MESON Chess Problem Database
Problem Display
PID: 183522 (7B/r3qb2/R2pP1p1/1R1NNknp/2Q2p2/3Pp1rp/4n3/3B2bK w - - 0 1)
Forster, Klaus
Papack, Daniel
The Problemist, 2017
#2
10 + 14
SOLUTION
- SOUND
- Sets
- 1...Kxe6
- 2.Sxe3#
- 1...Rxa6
- 2.Sxe7#
- 1...Ra8
- 2.Sxe7#
- 1...Kxe6
- Tries
- 1.Sf3?
- threat
- 2.Sxe3#
- 1...Kxe6
- 2.Sf6#
- 1...Kg4!
- threat
- 1.Sg4?
- threat
- 2.Sdxe3#
- 1...Kxg4
- 2.Qxf4#
- 1...Kxe6
- 2.Sdf6#
- 1...Qb7!
- threat
- 1.Sc6?
- threat
- 2.Sxe3#
- 1...Kg4
- 2.Qxf4#
- 1...Kxe6!
- threat
- 1.Sxf7?
- threat
- 2.Sxe3#
- 1...Kg4
- 2.Qxf4#
- 1...Kxe6
- 2.Sf6#
- 1...Qb7!
- threat
- 1.Sf3?
- Keys
- 1.Sd7!
- threat
- 2.Sxe3#
- 1...Kg4
- 2.Qxf4#
- 1...Kxe6
- 2.S5f6#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- K(g);P_SPINP(j),S_FLIGHT,XP(I)::QAB(D)+S(F),XP(c)
- R(l);N_GUARD,XR(H)::S(F),XQ(m)
- R(l);N_GUARD::S(F),XQ(m)
- Tries
- Try
- S(G);
- Threat
- R(E)+S(F),DCHECK,XP(c)
- Vars
- K(g);P_SPINP(j),S_FLIGHT,XP(I)::QAB(D)+S(F)
- Refutation
- K(g);P_SPINP(f),S_FLIGHT
- Try
- S(G);
- Threat
- R(E)+S(F),DCHECK,XP(c)
- Vars
- K(g);P_SPINP(f),P_SPINS(b),S_FLIGHT,XS(G)::QAR1(D),XP(f)
- K(g);P_SPINP(j),S_FLIGHT,XP(I)::QAB(D)+S(F)
- Refutation
- Q(m);P_PINS(F)
- Try
- S(G);
- Threat
- R(E)+S(F),DCHECK,XP(c)
- Vars
- K(g);P_SPINP(f),P_SPINS(b),S_FLIGHT::QAR1(D),XP(f)
- Refutation
- K(g);S_FLIGHT,XP(I)
- Try
- S(G);XB(n)
- Threat
- R(E)+S(F),DCHECK,XP(c)
- Vars
- K(g);P_SPINP(f),P_SPINS(b),S_FLIGHT::QAR1(D),XP(f)
- K(g);P_SPINP(j),S_FLIGHT,XP(I)::QAB(D)+S(F)
- Refutation
- Q(m);P_PINS(F)
- Try
- Actual
- S(G);
- Threat
- R(E)+S(F),DCHECK,XP(c)
- Vars
- K(g);P_SPINP(f),P_SPINS(b),S_FLIGHT::QAR1(D),XP(f)
- K(g);P_SPINP(j),S_FLIGHT,XP(I)::QAB(D)+S(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).