MESON Chess Problem Database
Problem Display
PID: 107283 (B2n4/rn2N1KQ/4p3/4k3/2p2pP1/1p6/8/3R2B1 w - - 0 1)
Ezdin, Ivan Petrovich
Intelectualie Egri, 1993
#2
7 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sa5
- 2.Qe4#
- 2.Qh5#
- 1...Sc5
- 2.Qh5#
- 1...Sd6
- 2.Bd4#
- 1...Sc6
- 2.Sxc6#
- 1...Sf7
- 2.Sc6#
- 1...f3
- 2.Bh2#
- 1...Sa5
- Tries
- 1.Bxb7?
- threat
- 2.Sg6#
- 2.Qe4#
- 2.Qh5#
- 1...Sxb7
- 2.Sc6#
- 1...f3
- 2.Sg6#
- 2.Bh2#
- 2.Qe4#
- 2.Qh2#
- 1...Sc6
- 2.Sxc6#
- 1...Sf7
- 2.Sc6#
- 2.Sg6#
- 2.Qe4#
- 1...Rxb7!
- threat
- 1.Rd4?
- threat
- 2.Sg6#
- 2.Qe4#
- 2.Qh5#
- 1...Sa5
- 2.Qe4#
- 2.Qh5#
- 1...Sc5
- 2.Qh5#
- 1...Sf7
- 2.Sc6#
- 2.Sg6#
- 2.Qe4#
- 1...Sd6!
- threat
- 1.Qb1?
- threat
- 2.Sg6#
- 1...Sa5
- 2.Qe4#
- 1...Sd6
- 2.Bd4#
- 1...Sc5!
- threat
- 1.Qc2?
- threat
- 2.Sg6#
- 2.Qe2#
- 1...f3
- 2.Sg6#
- 2.Bh2#
- 1...Ra2
- 2.Sg6#
- 1...Sa5
- 2.Qe4#
- 2.Qe2#
- 2.Qc3#
- 1...Sc5
- 2.Qc3#
- 1...Sd6
- 2.Bd4#
- 2.Qc3#
- 1...bxc2!
- threat
- 1.Qd3?
- threat
- 2.Sg6#
- 2.Re1#
- 2.Qe2#
- 2.Qd4#
- 1...f3
- 2.Sg6#
- 2.Bh2#
- 2.Qe3#
- 2.Qd4#
- 1...Ra1
- 2.Sg6#
- 2.Qe2#
- 2.Qd4#
- 1...Ra2
- 2.Sg6#
- 2.Qd4#
- 1...Sa5
- 2.Re1#
- 2.Qe2#
- 2.Qe4#
- 2.Qc3#
- 2.Qd4#
- 2.Qd6#
- 1...Sc5
- 2.Qc3#
- 2.Qd4#
- 2.Qd6#
- 1...Sd6
- 2.Bd4#
- 2.Qc3#
- 2.Qd4#
- 2.Qxd6#
- 1...Sc6
- 2.Sxc6#
- 2.Sg6#
- 2.Re1#
- 2.Qe2#
- 1...cxd3!
- threat
- 1.Qh1?
- threat
- 2.Sg6#
- 1...Sa5
- 2.Qe4#
- 2.Qh5#
- 1...Sc5
- 2.Qh5#
- 1...Sd6
- 2.Bd4#
- 1...f3!
- threat
- 1.Qh2?
- threat
- 2.Qe2#
- 1...Ke4
- 2.Qe2#
- 1...Sc5
- 2.Qh5#
- 1...Sd6
- 2.Bd4#
- 1...Ra2!
- threat
- 1.Bxb7?
- Keys
- 1.Rd7!
- threat
- 2.Bd4#
- 1...f3
- 2.Bh2#
- 1...Sd6
- 2.Sg6#
- 1...Sc6
- 2.Sxc6#
- threat
- 1.Rd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- S(g);P_PINS(D)::QAR(F)
- S(g);P_PINS(D),SBLOCK::B(B)
- S(h);N_GUARD::S(D),XS(h)
- S(h);N_GUARD::S(D)
- P(c);OGATEB::B(B)
- Tries
- Try
- B(G);XS(g)
- Threat
- DUALS(3)
- Vars
- S(h);N_GUARD,XB(G)::S(D)
- S(h);N_GUARD::S(D),XS(h)
- Refutation
- R(f);P_PINS(D),XB(G)
- Try
- R(A);
- Threat
- DUALS(3)
- Vars
- S(g);P_PINS(D)::QAR(F)
- Refutation
- S(g);P_PINS(D)
- Try
- Q(F);
- Threat
- S(D)
- Vars
- S(g);P_PINS(D)::QAR1(F)
- S(g);P_PINS(D),SBLOCK::B(B)
- Refutation
- S(g);P_PINS(D)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- R(f);::S(D)
- S(g);P_PINS(D)::QAB(F)
- Refutation
- P(a);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(4)
- Refutation
- P(b);XQ(F)
- Try
- Q(F);
- Threat
- S(D)
- Vars
- S(g);P_PINS(D)::QAR(F)
- S(g);P_PINS(D),SBLOCK::B(B)
- Refutation
- P(c);
- Try
- Q(F);P_PINP(c)
- Threat
- QAR(F)
- Vars
- K(d);N_SPINP(c),P-FLIGHT,P_SPINS(g)::QAR2(F)
- S(g);P_PINS(D)::QAR(F)
- S(g);P_PINS(D),SBLOCK::B(B)
- Refutation
- R(f);
- Try
- Actual
- R(A);
- Threat
- B(B)
- Vars
- P(c);OGATEB::B(B)
- S(g);::S(D)
- S(h);N_GUARD::S(D),XS(h)
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).