MESON Chess Problem Database
Problem Display
PID: 67137 (B1K2Q1B/4p3/3N3R/pPkP4/1p3P2/Np6/3nP1p1/8 w - - 0 1)
Avner, Uri
Scacchi e Scienze Applicate, 2000
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Kb6
- 2.Bd4#
- 1...Sb1
- 2.Se4#
- 1...Sf1
- 2.Se4#
- 1...Sf3
- 2.Se4#
- 1...Sc4
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...exd6
- 2.Qxd6#
- 1...e5
- 2.Sf5#
- 1...e6
- 2.Sdc4#
- 1...Kb6
- Tries
- 1.Sf5?
- threat
- 2.Bd4#
- 2.Qxe7#
- 1...g1Q
- 2.Qxe7#
- 1...g1B
- 2.Qxe7#
- 1...Sf3
- 2.Qxe7#
- 1...Sc4
- 2.Bd4#
- 1...Se4
- 2.Bd4#
- 1...bxa3!
- threat
- 1.Qxe7?
- threat
- 2.Sdc4#
- 2.Se4#
- 2.Sf5#
- 2.Sf7#
- 2.Se8#
- 2.Qe3#
- 2.Qa7#
- 2.Qc7#
- 1...Kb6
- 2.Sdc4#
- 2.Se4#
- 2.Sf5#
- 2.Sf7#
- 2.Se8#
- 2.Bd4#
- 2.Qe3#
- 2.Qc7#
- 1...g1Q
- 2.Sdc4#
- 2.Se4#
- 2.Sf5#
- 2.Sf7#
- 2.Se8#
- 2.Qa7#
- 2.Qc7#
- 1...g1B
- 2.Sdc4#
- 2.Se4#
- 2.Sf5#
- 2.Sf7#
- 2.Se8#
- 2.Qa7#
- 2.Qc7#
- 1...Sf1
- 2.Sdc4#
- 2.Se4#
- 2.Sf5#
- 2.Sf7#
- 2.Se8#
- 2.Qa7#
- 2.Qc7#
- 1...Sf3
- 2.Sdc4#
- 2.Se4#
- 2.Sf5#
- 2.Sf7#
- 2.Se8#
- 2.Qa7#
- 2.Qc7#
- 1...Sc4
- 2.Sdxc4#
- 2.Se4#
- 2.Qc7#
- 1...Se4
- 2.Sxe4#
- 2.Qa7#
- 2.Qc7#
- 1...bxa3!
- threat
- 1.Qf7?
- threat
- 2.Sb7#
- 1...Kb6
- 2.Bd4#
- 1...exd6
- 2.Qa7#
- 2.Qc7#
- 1...e5
- 2.Qa7#
- 1...e6
- 2.Qc7#
- 1...bxa3!
- threat
- 1.e3?
- threat
- 2.Bd4#
- 1...Kb6
- 2.Bd4#
- 1...Sf3
- 2.Se4#
- 1...e5
- 2.Sdc4#
- 2.Se4#
- 2.Sf5#
- 2.Sf7#
- 2.Se8#
- 1...bxa3!
- threat
- 1.e4?
- threat
- 2.Sb7#
- 1...Kb6
- 2.Bd4#
- 1...Sxe4
- 2.Sxe4#
- 1...exd6
- 2.Qxd6#
- 1...e5
- 2.Sf5#
- 1...e6
- 2.Sdc4#
- 1...bxa3!
- threat
- 1.Sf5?
- Keys
- 1.Qg7!
- threat
- 2.Qd4#
- 1...Kb6
- 2.Qd4#
- 1...e5
- 2.Qa7#
- 1...e6
- 2.Qc7#
- 1...g1Q
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...Sf3
- 2.Se4#
- threat
- 1.Qg7!
This is a version of 67136
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- K(f);S_FLIGHT::B(K)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- P(g);OGATE,P_SPINP(g),XS(F)::QAB1(J),XP(g)
- P(g);::QAB(J)+S(F)
- Tries
- Try
- S(F);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- P(b);::QAB(J),XP(g)
- S(a);::QAB(J),XP(g)
- S(a);::B(K)
- Refutation
- P(d);XS(B)
- Try
- Q(J);XP(g)
- Threat
- DUALS(8)
- Refutation
- P(d);XS(B)
- Try
- Q(J);
- Threat
- S(F)
- Vars
- K(f);S_FLIGHT::B(K)
- P(g);OGATE::QAB(J)
- P(g);OGATE::QAR2(J)
- Refutation
- P(d);XS(B)
- Try
- P(A);
- Threat
- B(K)
- Vars
- K(f);S_FLIGHT::B(K)
- S(a);N_GUARD::S(F)
- Refutation
- P(d);XS(B)
- Try
- P(A);
- Threat
- S(F)
- Vars
- K(f);S_FLIGHT::B(K)
- S(a);XP(A)::S(F),XS(a)
- P(g);OGATE,P_SPINP(g),XS(F)::QAB1(J),XP(g)
- P(g);::QAB(J)+S(F)
- Refutation
- P(d);XS(B)
- Try
- Actual
- Q(J);
- Threat
- QAB1(J)
- Vars
- K(f);S_FLIGHT::QAB(J)
- P(g);OGATE::QAB(J)
- P(g);OGATE::QAR2(J)
- P(b);OGATE::QAB(J),XQ(b)
- P(b);OGATE::QAB(J),XB(b)
- S(a);N_GUARD::S(F)
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).