MESON Chess Problem Database
Problem Display
PID: 276458 (4K3/3N1Rp1/1p2k3/1p2P3/N1n1r2n/3Q4/q1P5/7b w - - 0 1)
Eerkes, Allard Pieter
3rd Prize, To Mat, 1952
#2
7 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Re7#
- 1...Re2
- 2.Re7#
- 1...Re3
- 2.Re7#
- 1...Rf4
- 2.Re7#
- 1...Rg4
- 2.Re7#
- 1...Rxe5
- 2.Sf8#
- 2.Re7#
- 1...Sb2
- 2.Qd6#
- 1...Sd2
- 2.Qd6#
- 1...Sa3
- 2.Qd6#
- 1...Se3
- 2.Qd6#
- 1...Sa5
- 2.Qd6#
- 1...Sxe5
- 2.Sf8#
- 1...Sd6+
- 2.Qxd6#
- 1...g5
- 2.Rf6#
- 1...g6
- 2.Rf6#
- 1...Re1
- Tries
- 1.Sc3?
- threat
- 2.Qd5#
- 1...Sd6+
- 2.Qxd6#
- 1...Rxe5
- 2.Sf8#
- 2.Re7#
- 1...Sxe5
- 2.Sf8#
- 1...Re1
- 2.Re7#
- 1...Re2
- 2.Re7#
- 1...Re3
- 2.Re7#
- 1...Rd4
- 2.Re7#
- 1...Rf4
- 2.Re7#
- 1...Rg4
- 2.Re7#
- 1...Sb2
- 2.Qd6#
- 1...Sd2
- 2.Qd6#
- 1...Sa3
- 2.Qd6#
- 1...Se3
- 2.Qd6#
- 1...Sa5
- 2.Qd6#
- 1...Qa8+!
- threat
- 1.Saxb6?
- threat
- 2.Qd5#
- 1...Sd6+
- 2.Qxd6#
- 1...Rxe5
- 2.Sf8#
- 2.Re7#
- 1...Sxe5
- 2.Sc5#
- 2.Sf8#
- 1...Sxb6
- 2.Qd6#
- 1...Re1
- 2.Re7#
- 1...Re2
- 2.Re7#
- 1...Re3
- 2.Re7#
- 1...Rd4
- 2.Re7#
- 1...Rf4
- 2.Re7#
- 1...Rg4
- 2.Re7#
- 1...Sb2
- 2.Qd6#
- 1...Sd2
- 2.Qd6#
- 1...Sa3
- 2.Qd6#
- 1...Se3
- 2.Qd6#
- 1...Sa5
- 2.Qd6#
- 1...Qa8+!
- threat
- 1.Sc3?
- Keys
- 1.Sdxb6!
- threat
- 2.Qd5#
- 1...Sd6+
- 2.Qxd6#
- 1...Kxe5
- 2.Qd5#
- 1...Rxe5
- 2.Qd7#
- 1...Sxe5
- 2.Sc5#
- 1...Sxb6
- 2.Qd6#
- 1...Re1
- 2.Re7#
- 1...Re2
- 2.Re7#
- 1...Re3
- 2.Re7#
- 1...Rd4
- 2.Re7#
- 1...Rf4
- 2.Re7#
- 1...Rg4
- 2.Re7#
- 1...Sb2
- 2.Qd6#
- 1...Sd2
- 2.Qd6#
- 1...Sa3
- 2.Qd6#
- 1...Se3
- 2.Qd6#
- 1...Sa5
- 2.Qd6#
- threat
- 1.Sdxb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- R(d);::R1(F)
- S(c);N_GUARD::QAR1(B)
- S(c);SBLOCK,XP(D)::S(E)
- S(c);CHECK,N_GUARD::QAR1(B),XS(c)
- P(i);N_GUARD::R1(F)
- Tries
- Try
- S(C);
- Threat
- QAB1(B)
- Vars
- S(c);CHECK,N_GUARD::QAR1(B),XS(c)
- S(c);SBLOCK,XP(D)::S(E)
- R(d);::R1(F)
- S(c);N_GUARD::QAR1(B)
- Refutation
- Q(b);CHECK
- Try
- S(C);XP(g)
- Threat
- QAB1(B)
- Vars
- S(c);CHECK,N_GUARD::QAR1(B),XS(c)
- S(c);N_GUARD,XS(C)::QAR1(B)
- R(d);::R1(F)
- S(c);N_GUARD::QAR1(B)
- Refutation
- Q(b);CHECK
- Try
- Actual
- S(E);XP(g)
- Threat
- QAB1(B)
- Vars
- S(c);CHECK,N_GUARD::QAR1(B),XS(c)
- K(h);P-FLIGHT,XP(D)::QAR1(B)
- R(d);SBLOCK,XP(D)::QAB1(B)
- S(c);SBLOCK,XP(D)::S(C)
- S(c);N_GUARD,XS(E)::QAR1(B)
- R(d);::R1(F)
- S(c);N_GUARD::QAR1(B)
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).