MESON Chess Problem Database
Problem Display
PID: 251657 (1q3b2/p4B1K/2P3P1/6Q1/3pp3/1N1k1N1p/2pPnB2/2nbr2r w - - 0 1)
Zappas, Byron
Probleemblad, 1982
#2
9 + 13
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Qb5#
- 1...Qg3
- 2.Qb5#
- 1...Qf4
- 2.Qb5#
- 1...Qe5
- 2.Sxe5#
- 1...Qd6
- 2.Qb5#
- 1...Qc7
- 2.Qb5#
- 1...Qxb3
- 2.Se5#
- 1...Qb4
- 2.Se5#
- 1...Qb5
- 2.Qxb5#
- 1...Qb6
- 2.Se5#
- 1...Qb7
- 2.Se5#
- 1...Qa8
- 2.Se5#
- 2.Qb5#
- 1...Qc8
- 2.Se5#
- 2.Qb5#
- 1...Qd8
- 2.Se5#
- 2.Qb5#
- 1...Qe8
- 2.Qb5#
- 1...Rh2
- 2.Sxe1#
- 1...Bc5
- 2.Sxc5#
- 1...Bh6
- 2.Sc5#
- 1...Bg7
- 2.Sc5#
- 1...Sg1
- 2.Sxc1#
- 1...Sc3
- 2.Sxc1#
- 1...Sg3
- 2.Sxc1#
- 1...Sf4
- 2.Sxc1#
- 1...exf3
- 2.Qf5#
- 1...e3
- 2.Qf5#
- 1...Qh2
- Tries
- 1.Sa5?
- threat
- 2.Bc4#
- 1...e3
- 2.Qf5#
- 1...Qc7
- 2.Qb5#
- 1...Qb3
- 2.Se5#
- 1...Qb4
- 2.Se5#
- 1...Qb5
- 2.Qxb5#
- 1...Qb7
- 2.Se5#
- 1...exf3!
- threat
- 1.Sfxd4?
- threat
- 2.Qe3#
- 1...Sxd4
- 2.Sxc1#
- 1...e3
- 2.Qxe3#
- 2.Qf5#
- 1...Qg3
- 2.Qb5#
- 1...Qf4
- 2.Qb5#
- 1...Bh6
- 2.Sc5#
- 1...Sg1
- 2.Sxc1#
- 1...Sc3
- 2.Sxc1#
- 1...Sg3
- 2.Sxc1#
- 1...Sf4!
- threat
- 1.Qc5?
- threat
- 2.Bc4#
- 2.Qc4#
- 1...Bxc5
- 2.Sxc5#
- 1...exf3
- 2.Qf5#
- 1...e3
- 2.Qf5#
- 1...Qc7
- 2.Qc4#
- 2.Qb5#
- 1...Qb4
- 2.Se5#
- 1...Qb5
- 2.Se5#
- 2.Qxb5#
- 1...Qb7
- 2.Se5#
- 2.Qc4#
- 1...Qxb3!
- threat
- 1.Qd5?
- threat
- 2.Qc4#
- 1...exf3
- 2.Qxf3#
- 2.Qf5#
- 1...Qb4
- 2.Se5#
- 1...Qb5
- 2.Se5#
- 2.Qxb5#
- 1...e3
- 2.Qf5#
- 1...Qxb3!
- threat
- 1.Sa5?
- Keys
- 1.Bxd4!
- threat
- 2.Qe3#
- 1...Sxd4
- 2.Sxc1#
- 1...Sg1
- 2.Sxc1#
- 1...Sc3
- 2.Sxc1#
- 1...Sg3
- 2.Sxc1#
- 1...Sf4
- 2.Sxc1#
- 1...e3
- 2.Qxe3#
- 2.Qf5#
- 1...Qf4
- 2.Qb5#
- 1...Bh6
- 2.Sc5#
- threat
- 1.Bxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 16
- Sets
- Q(l);N_GUARD::QAB(E)
- Q(l);N_GUARD::S(D),XQ(l)
- Q(l);N_GUARD,P_PINB(H)::QAB(E)
- Q(l);N_GUARD,XS(C)::S(D)
- Q(l);N_GUARD::S(D)
- Q(l);N_GUARD::QAB(E),XQ(l)
- Q(l);N_GUARD,P_PINB(H)::S(D)
- R(d);N_GUARD::S(D),XR(c)
- B(m);N_GUARD::S(C),XB(m)
- B(m);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(a)
- P(j);OGATEB,XS(D)::QAB(E)
- P(j);OGATEB::QAB(E)
- Tries
- Try
- S(C);
- Threat
- B(H)
- Vars
- P(j);OGATEB::QAB(E)
- Q(l);N_GUARD,P_PINB(H)::QAB(E)
- Q(l);N_GUARD::S(D)
- Q(l);N_GUARD::QAB(E),XQ(l)
- Q(l);N_GUARD,P_PINB(H)::S(D)
- Refutation
- P(j);XS(D)
- Try
- S(D);XP(i)
- Threat
- QAR1(E)
- Vars
- S(f);N_GUARD,XS(D)::S(C),XS(a)
- Q(l);N_GUARD::QAB(E)
- B(m);N_GUARD::S(C)
- S(f);N_GUARD::S(C),XS(a)
- Refutation
- S(f);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(m);XQ(E)::S(C),XB(m)
- P(j);OGATEB,XS(D)::QAB(E)
- P(j);OGATEB::QAB(E)
- Q(l);N_GUARD::S(D)
- Refutation
- Q(l);XS(C)
- Try
- Q(E);P_PINP(i)
- Threat
- QAB1(E)
- Vars
- Q(l);N_GUARD::S(D)
- P(j);OGATEB::QAB(E)
- Refutation
- Q(l);XS(C)
- Try
- Actual
- B(B);XP(i)
- Threat
- QAR1(E)
- Vars
- S(f);N_GUARD,XB(B)::S(C),XS(a)
- S(f);N_GUARD::S(C),XS(a)
- Q(l);N_GUARD::QAB(E)
- B(m);N_GUARD::S(C)
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).