MESON Chess Problem Database
Problem Display
PID: 251733 (3K1N2/1p2p3/1n1pP3/3k1N2/1QpP4/1np2R1p/2B4B/8 w - - 0 1)
de Haas, Bastian Evert
Probleemblad, 1982
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Kc6
- 2.Sxe7#
- 1...Sa1
- 2.Qb5#
- 1...Sc1
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Sxd4
- 2.Sxe7#
- 1...Sa5
- 2.Qb5#
- 1...Sa4
- 2.Qxb7#
- 1...Sd7
- 2.Qxb7#
- 1...Sa8
- 2.Qxb7#
- 1...Sc8
- 2.Qxb7#
- 1...Kc6
- Tries
- 1.Bg1?
- threat
- 2.Sxe7#
- 1...Kc6
- 2.Sxe7#
- 1...Sc8
- 2.Qxb7#
- 1...Sxd4!
- threat
- 1.Bxd6?
- 1...Kc6
- 2.Sxe7#
- 1...Sxd4
- 2.Sxe7#
- 2.Qc5#
- 1...exd6
- 2.Qxd6#
- 1...Sc5
- 2.Qxc5#
- 1...Sa1
- 2.Qc5#
- 2.Qb5#
- 1...Sc1
- 2.Qc5#
- 2.Qb5#
- 1...Sd2
- 2.Qc5#
- 2.Qb5#
- 1...Sa5
- 2.Qc5#
- 2.Qb5#
- 1...Sa4
- 2.Qxb7#
- 1...Sd7
- 2.Qxb7#
- 1...Sa8
- 2.Qxb7#
- 1...Sc8
- 2.Qxb7#
- 1...h2!
- 1...Kc6
- 1.Rf1?
- 1...Kc6
- 2.Sxe7#
- 1...Sxd4
- 2.Sxe7#
- 1...Sa1
- 2.Qb5#
- 1...Sc1
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Sa5
- 2.Qb5#
- 1...Sa4
- 2.Qxb7#
- 1...Sd7
- 2.Qxb7#
- 1...Sa8
- 2.Qxb7#
- 1...Sc8
- 2.Qxb7#
- 1...Sc5!
- 1...Kc6
- 1.Rf2?
- 1...Kc6
- 2.Sxe7#
- 1...Sxd4
- 2.Sxe7#
- 1...Sa1
- 2.Qb5#
- 1...Sc1
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Sa5
- 2.Qb5#
- 1...Sa4
- 2.Qxb7#
- 1...Sd7
- 2.Qxb7#
- 1...Sa8
- 2.Qxb7#
- 1...Sc8
- 2.Qxb7#
- 1...Sc5!
- 1...Kc6
- 1.Rxc3?
- 1...Kc6
- 2.Sxe7#
- 1...Sxd4
- 2.Sxe7#
- 1...Sa1
- 2.Qb5#
- 1...Sc1
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Sa5
- 2.Qb5#
- 1...Sa4
- 2.Qxc4#
- 2.Qxb7#
- 1...Sd7
- 2.Qxc4#
- 2.Qxb7#
- 1...Sa8
- 2.Qxc4#
- 2.Qxb7#
- 1...Sc8
- 2.Qxc4#
- 2.Qxb7#
- 1...Sc5!
- 1...Kc6
- 1.Re3?
- threat
- 2.Be4#
- 1...Kc6
- 2.Sxe7#
- 1...Sd2
- 2.Qb5#
- 1...Sc5!
- threat
- 1.Rxh3?
- 1...Kc6
- 2.Sxe7#
- 1...Sxd4
- 2.Sxe7#
- 1...Sa1
- 2.Qb5#
- 1...Sc1
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Sa5
- 2.Qb5#
- 1...Sa4
- 2.Qxb7#
- 1...Sd7
- 2.Qxb7#
- 1...Sa8
- 2.Qxb7#
- 1...Sc8
- 2.Qxb7#
- 1...Sc5!
- 1...Kc6
- 1.Rf4?
- threat
- 2.Sxe7#
- 2.Be4#
- 1...Kc6
- 2.Sxe7#
- 1...Sc5
- 2.Sxe7#
- 1...Sd2
- 2.Sxe7#
- 2.Qb5#
- 1...Sc8
- 2.Be4#
- 2.Qxb7#
- 1...Sxd4!
- threat
- 1.Qxb3?
- threat
- 2.Qb5#
- 1...Kc6
- 2.Sxe7#
- 1...Sa4
- 2.Qxb7#
- 1...Sd7
- 2.Qxb7#
- 1...cxb3!
- threat
- 1.Qxb6?
- threat
- 2.Se3#
- 2.Sxe7#
- 2.Qxb7#
- 1...Sxd4
- 2.Se3#
- 2.Sxe7#
- 1...Sa5
- 2.Se3#
- 2.Sxe7#
- 2.Qb5#
- 1...Sc5!
- threat
- 1.Bg1?
- Keys
- 1.Sxd6!
- 1...Kxd4
- 2.Rd3#
- 1...Kc6
- 2.Qb5#
- 1...Sxd4
- 2.Be4#
- 1...exd6
- 2.Qxd6#
- 1...Sc5
- 2.Qxc5#
- 1...Sa1
- 2.Qc5#
- 1...Sc1
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- 1...Sa4
- 2.Qxc4#
- 1...Sd7
- 2.Qxc4#
- 1...Sa8
- 2.Qxc4#
- 1...Sc8
- 2.Qxc4#
- 1...Kxd4
- 1.Sxd6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 10
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(e);N_GUARD,S_FLIGHT::S(F),XP(i)
- S(a);N_GUARD::QAR2(D)
- S(a);SBLOCK,XP(E)::S(F),XP(i)
- S(f);OGATE::QAB(D),XP(h)
- Tries
- Try
- B(B);
- Threat
- S(F),XP(i)
- Vars
- K(e);S_FLIGHT::S(F),XP(i)
- S(f);OGATE::QAB(D),XP(h)
- Refutation
- S(a);XP(E)
- Try
- B(B);XP(g)
- Vars
- K(e);N_GUARD,S_FLIGHT::S(F),XP(i)
- P(i);OGATE,XB(B)::QAR1(D),XP(i)
- S(a);N_GUARD::QAR1(D),XS(a)
- S(f);OGATE::QAB(D),XP(h)
- Refutation
- P(c);
- Try
- R(C);
- Vars
- K(e);N_GUARD,S_FLIGHT::S(F),XP(i)
- S(a);SBLOCK,XP(E)::S(F),XP(i)
- S(a);N_GUARD::QAR2(D)
- S(f);OGATE::QAB(D),XP(h)
- Refutation
- S(a);
- Try
- R(C);
- Vars
- K(e);N_GUARD,S_FLIGHT::S(F),XP(i)
- S(a);SBLOCK,XP(E)::S(F),XP(i)
- S(a);N_GUARD::QAR2(D)
- S(f);OGATE::QAB(D),XP(h)
- Refutation
- S(a);
- Try
- R(C);XP(b)
- Vars
- K(e);N_GUARD,P_SPINP(d),S_FLIGHT::S(F),XP(i)
- S(a);SBLOCK,XP(E)::S(F),XP(i)
- S(a);N_GUARD::QAR2(D)
- Refutation
- S(a);
- Try
- R(C);
- Threat
- B(A)
- Vars
- K(e);N_GUARD,S_FLIGHT::S(F),XP(i)
- S(a);N_GUARD::QAR2(D)
- Refutation
- S(a);
- Try
- R(C);XP(c)
- Vars
- K(e);N_GUARD,S_FLIGHT::S(F),XP(i)
- S(a);SBLOCK,XP(E)::S(F),XP(i)
- S(a);N_GUARD::QAR2(D)
- S(f);OGATE::QAB(D),XP(h)
- Refutation
- S(a);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- K(e);S_FLIGHT::S(F),XP(i)
- S(a);::S(F),XP(i)
- Refutation
- S(a);XP(E)
- Try
- Q(D);P_PINP(d),XS(a)
- Threat
- QAR2(D)
- Vars
- K(e);N_GUARD,N_SPINP(d),S_FLIGHT::S(F),XP(i)
- S(f);OGATE::QAB(D),XP(h)
- Refutation
- P(d);N_SPINP(d),XQ(D)
- Try
- Q(D);XS(f)
- Threat
- DUALS(3)
- Refutation
- S(a);
- Try
- Actual
- S(F);XP(g)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINP(d),XP(E)::R1(C)
- K(e);N_GUARD,S_CUTS(a),S_FLIGHT::QAB1(D)
- S(a);SBLOCK,XP(E)::B(A)
- P(i);OGATE,XS(F)::QAR1(D),XP(i)
- S(a);N_GUARD::QAR1(D),XS(a)
- S(a);N_GUARD::QAR1(D)
- S(f);N_GUARD::QAB1(D),XP(d)
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).