MESON Chess Problem Database
Problem Display
PID: 70231 (3NB2K/1p2P3/1Rp2kN1/7P/6PP/2r2n2/1r3b2/B2b1R1Q w - - 0 1)
Pape, Edouard
Good Companions (May), 1923
#2
12 + 8
| 3391 | Het Half Pin Thema | 1924 |
SOLUTION
- SOUND
- Sets
- 1...Re2
- 2.Qxf3#
- 1...Bxh4
- 2.Qxh4#
- 1...Sxh4
- 2.Qxh4#
- 1...Re2
- Tries
- 1.Bd7?
- threat
- 2.e8S#
- 1...Bxh4
- 2.Qxh4#
- 1...Sxh4
- 2.Qxh4#
- 1...Re2
- 2.Qxf3#
- 1...Re3!
- threat
- 1.Bf7?
- threat
- 2.e8S#
- 1...Bxh4
- 2.Qxh4#
- 1...Sxh4
- 2.Qxh4#
- 1...Re2
- 2.Qxf3#
- 1...Re3!
- threat
- 1.Bd7?
- Keys
- 1.Bxc6!
- threat
- 2.e8S#
- 1...Bxh4
- 2.Qxh4#
- 1...Sxh4
- 2.Qxh4#
- 1...Re2
- 2.Qxf3#
- 1...Re3
- 2.Be4#
- threat
- 1.Bxc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);P_SPINR(d),S_CUTB(a)::QAR(C),XS(e)
- B(c);OGATE,P_SPINS(e),XP(E)::QAB(C),XB(c)
- S(e);OGATE,P_SPINB(c),XP(E)::QAB(C),XS(e)
- Tries
- Try
- B(K);
- Threat
- P=S
- Vars
- B(c);OGATE,P_SPINS(e),XP(E)::QAB(C),XB(c)
- S(e);OGATE,P_SPINB(c),XP(E)::QAB(C),XS(e)
- R(b);P_SPINR(d),S_CUTB(a)::QAR(C),XS(e)
- Refutation
- R(d);P_SPINR(b)
- Try
- B(K);
- Threat
- P=S
- Vars
- B(c);OGATE,P_SPINS(e),XP(E)::QAB(C),XB(c)
- S(e);OGATE,P_SPINB(c),XP(E)::QAB(C),XS(e)
- R(b);P_SPINR(d),S_CUTB(a)::QAR(C),XS(e)
- Refutation
- R(d);P_SPINR(b)
- Try
- Actual
- B(K);XP(f)
- Threat
- P=S
- Vars
- B(c);OGATE,P_SPINS(e),XP(E)::QAB(C),XB(c)
- S(e);OGATE,P_SPINB(c),XP(E)::QAB(C),XS(e)
- R(b);P_SPINR(d),S_CUTB(a)::QAR(C),XS(e)
- R(d);N_GUARD,P_SPINR(b),S_CUTB(c)::R(G)+B(K)
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).