MESON Chess Problem Database
Problem Display
PID: 136030 (5q2/2Q5/1P2R3/8/1PnkB3/6p1/n3R1N1/KN1bB3 w - - 0 1)
Einat, Paz
Hirschenson, Aaron
Mat Plus, 2009
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.Qxc5#
- 1...Qh6
- 2.Qc5#
- 1...Qg7
- 2.Qc5#
- 1...Qf1
- 2.Qc5#
- 1...Qf2
- 2.Qc5#
- 1...Qf3
- 2.Qc5#
- 1...Qf4
- 2.Qc5#
- 1...Qf6
- 2.Qc5#
- 1...Qf7
- 2.Qc5#
- 1...Qa8
- 2.Qc5#
- 1...Qb8
- 2.Qc5#
- 1...Qd8
- 2.Qc5#
- 1...Qe8
- 2.Qc5#
- 1...Qg8
- 2.Qc5#
- 1...Qh8
- 2.Qc5#
- 1...Sc1
- 2.Bc3#
- 1...Sc3
- 2.Bxc3#
- 1...Sxb4
- 2.Bc3#
- 1...Sd2
- 2.Rxd2#
- 1...Sa3
- 2.Rd2#
- 1...Se3
- 2.Rd2#
- 1...Sa5
- 2.Rd2#
- 1...Sxb6
- 2.Rd2#
- 1...Sd6
- 2.Rd2#
- 2.Qc5#
- 1...Qc5
- Tries
- 1.Sa3?
- threat
- 2.Sb5#
- 2.Qxc4#
- 1...Bxe2
- 2.Sc2#
- 2.Sb5#
- 1...Sxa3
- 2.Rd2#
- 1...Sxb6
- 2.Sb5#
- 2.Rd2#
- 2.Qe5#
- 1...Qc5
- 2.Qxc5#
- 1...Qf5
- 2.Qxc4#
- 1...Qc8
- 2.Sb5#
- 1...Qe8
- 2.Qxc4#
- 2.Qc5#
- 1...Bb3
- 2.Sb5#
- 1...Ba4
- 2.Qxc4#
- 1...Sc3
- 2.Qxc4#
- 1...Sb2
- 2.Sb5#
- 2.Qe5#
- 1...Sd2
- 2.Sb5#
- 2.Rxd2#
- 2.Qe5#
- 1...Se3
- 2.Sb5#
- 2.Rd2#
- 2.Qe5#
- 1...Sa5
- 2.Sb5#
- 2.Rd2#
- 2.Qe5#
- 1...Se5
- 2.Sb5#
- 2.Qxe5#
- 1...Sd6
- 2.Rd2#
- 2.Qc5#
- 1...Qxb4!
- threat
- 1.Se3?
- threat
- 2.Qxc4#
- 1...Qxb4
- 2.Sf5#
- 1...Bxe2
- 2.Sc2#
- 1...Sxe3
- 2.Rd2#
- 1...Sxb6
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Qc5
- 2.Qxc5#
- 1...Qc8
- 2.Sf5#
- 1...Sb2
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Sd6
- 2.Qc5#
- 1...Bb3!
- threat
- 1.Bf2+?
- 1...Qxf2
- 2.Qc5#
- 1...Se3
- 2.Bxe3#
- 2.Rd2#
- 1...gxf2!
- 1...Qxf2
- 1.Rd6+?
- 1...Ke5
- 2.Qc5#
- 1...Sxd6
- 2.Qc5#
- 1...Qxd6!
- 1...Ke5
- 1.Sa3?
- Keys
- 1.Sd2!
- threat
- 2.Qxc4#
- 1...Kc3
- 2.Qxc4#
- 1...Qxb4
- 2.Sf3#
- 1...Bxe2
- 2.Sb3#
- 1...Sxd2
- 2.Rxd2#
- 1...Sxb6
- 2.Qe5#
- 1...Qc5
- 2.Sf3#
- 1...Qc8
- 2.Sf3#
- 1...Bb3
- 2.Sxb3#
- 1...Sb2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sd6
- 2.Qc5#
- threat
- 1.Sd2!
This is a version of 81220
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 8
- REMOVED MATES = 17
- Sets
- Q(f);N_GUARD::QAB1(J),XQ(f)
- Q(f);N_GUARD::QAB1(J)
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- S(b);N_GUARD,XP(F)::B(C)
- S(d);N_GUARD::R(D),XS(d)
- S(d);N_GUARD::R(D)
- S(d);N_GUARD,XP(H)::R(D)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XS(B)::R(D)
- Q(f);N_GUARD::QAB1(J),XQ(f)
- Q(f);::QAR1(J),XS(d)
- Q(f);::S(B)
- B(a);::S(B)
- B(a);::QAR1(J),XS(d)
- S(b);::QAR1(J),XS(d)
- Refutation
- Q(f);XP(F)
- Try
- S(E);
- Threat
- QAR1(J),XS(d)
- Vars
- Q(f);N_GUARD,XP(F)::S(E)
- B(a);N_GUARD,XR(D)::S(E)
- S(d);N_GUARD,SBLOCK,XS(E)::R(D)
- S(d);N_GUARD,XP(H)::QAB1(J)
- S(d);N_GUARD::QAB1(J),XS(d)
- Q(f);N_GUARD::QAB1(J),XQ(f)
- Q(f);N_GUARD::S(E)
- S(d);N_GUARD::QAB1(J)
- S(d);S_CUTQ(f)::QAB1(J)
- Refutation
- B(a);
- Try
- B(C);CHECK
- Vars
- Q(f);XB(C)::QAB1(J)
- Refutation
- P(c);XB(C)
- Try
- R(I);CHECK
- Vars
- K(e);S_FLIGHT::QAR2(J)
- S(d);XR(I)::QAB1(J)
- Refutation
- Q(f);XR(I)
- Try
- Actual
- S(B);
- Threat
- QAR1(J),XS(d)
- Vars
- K(e);P_SPINS(d),S_FLIGHT::QAR1(J),XS(d)
- Q(f);N_GUARD,XP(F)::S(B)
- B(a);N_GUARD,XR(D)::S(B)
- S(d);OGATE,XS(B)::R(D),XS(d)
- S(d);N_GUARD,XP(H)::QAB1(J)
- Q(f);N_GUARD::S(B)
- B(a);N_GUARD::S(B),XB(a)
- S(d);N_GUARD::QAB1(J)
- S(d);N_GUARD::QAB1(J),XS(d)
- S(d);S_CUTQ(f)::QAB1(J)
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).