MESON Chess Problem Database
Problem Display
PID: 105372 (8/3K4/3N4/R1pBp2R/3k1pN1/2pb2p1/4P2p/7Q w - - 0 1)
Erokhin, Vladimir Alekseevich
Intelectualie Egri, 1992
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.Sb5#
- 1...Bc2
- 2.Sb5#
- 1...Bxe2
- 2.Qe4#
- 1...Bc4
- 2.Sf5#
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bb5+
- 2.Sxb5#
- 1...Bf5+
- 2.Sxf5#
- 1...Ba6
- 2.Sf5#
- 2.Qe4#
- 1...Bg6
- 2.Sb5#
- 1...Bh7
- 2.Sb5#
- 1...Bb1
- Tries
- 1.Kc6?
- 1...Bb5+
- 2.Sxb5#
- 1...Bxe2
- 2.Qe4#
- 1...c2
- 2.Qa1#
- 1...Bb1
- 2.Sb5#
- 1...Bc2
- 2.Sb5#
- 1...Bc4
- 2.Sf5#
- 2.Qe4#
- 1...Be4
- 2.Sb5#
- 2.Qxe4#
- 1...Bf5
- 2.Sb5#
- 2.Sxf5#
- 1...Ba6
- 2.Sf5#
- 2.Qe4#
- 1...Bg6
- 2.Sb5#
- 1...Bh7
- 2.Sb5#
- 1...f3
- 2.e3#
- 1...c4
- 2.Sb5#
- 1...e4
- 2.Sf5#
- 1...g2!
- 1...Bb5+
- 1.Ba2?
- threat
- 2.Qd5#
- 1...Bb5+
- 2.Sxb5#
- 1...Bf5+
- 2.Sxf5#
- 1...c2
- 2.Qa1#
- 1...Bc4
- 2.Sf5#
- 2.Qe4#
- 1...Be4
- 2.Sb5#
- 2.Qxe4#
- 1...f3
- 2.e3#
- 1...e4
- 2.Sf5#
- 2.Rd5#
- 1...g2!
- threat
- 1.Bb3?
- threat
- 2.Qd5#
- 1...Bb5+
- 2.Sxb5#
- 1...Bf5+
- 2.Sxf5#
- 1...c2
- 2.Qa1#
- 1...Bc4
- 2.Sf5#
- 2.Qe4#
- 1...Be4
- 2.Sb5#
- 2.Qxe4#
- 1...f3
- 2.e3#
- 1...e4
- 2.Sf5#
- 2.Rd5#
- 1...g2!
- threat
- 1.Be6?
- threat
- 2.Qd5#
- 1...Bb5+
- 2.Sxb5#
- 1...c2
- 2.Qa1#
- 1...Bc4
- 2.Sf5#
- 2.Qe4#
- 1...Be4
- 2.Sb5#
- 2.Qxe4#
- 1...f3
- 2.e3#
- 1...e4
- 2.Sf5#
- 2.Rd5#
- 1...g2!
- threat
- 1.Bf7?
- threat
- 2.Qd5#
- 1...Bb5+
- 2.Sxb5#
- 1...Bf5+
- 2.Sxf5#
- 1...c2
- 2.Qa1#
- 1...Bc4
- 2.Sf5#
- 2.Qe4#
- 1...Be4
- 2.Sb5#
- 2.Qxe4#
- 1...f3
- 2.e3#
- 1...e4
- 2.Sf5#
- 2.Rd5#
- 1...g2!
- threat
- 1.Bg8?
- threat
- 2.Qd5#
- 1...Bb5+
- 2.Sxb5#
- 1...Bf5+
- 2.Sxf5#
- 1...c2
- 2.Qa1#
- 1...Bc4
- 2.Sf5#
- 2.Qe4#
- 1...Be4
- 2.Sb5#
- 2.Qxe4#
- 1...f3
- 2.e3#
- 1...e4
- 2.Sf5#
- 2.Rd5#
- 1...g2!
- threat
- 1.Ra4+?
- 1...Bc4
- 2.Sb5#
- 2.Sf5#
- 2.Rxc4#
- 2.Qe4#
- 2.Qd1#
- 1...c4!
- 1...Bc4
- 1.Kc6?
- Keys
- 1.Qd1!
- threat
- 2.Qxd3#
- 1...Kxd5
- 2.Qxd3#
- 1...c4
- 2.Sf5#
- 1...e4
- 2.Sb5#
- threat
- 1.Qd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- B(c);N_GUARD::S(G)
- B(c);N_GUARD,XP(B)::QAR1(A)
- B(c);N_GUARD::QAR1(A),XB(c)
- B(c);CHECK,N_GUARD::S(G),XB(c)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- B(c);CHECK,N_GUARD::S(G),XB(c)
- B(c);N_GUARD,XP(B)::QAR1(A)
- P(b);OGATEB::QAB(A)
- B(c);N_GUARD::S(G)
- P(f);N_GUARD::P(B)
- P(g);S_CUTB(c)::S(G)
- P(h);S_CUTB(c)::S(G)
- Refutation
- P(d);
- Try
- B(E);
- Threat
- QAR1(A)
- Vars
- B(c);CHECK,N_GUARD::S(G),XB(c)
- P(b);OGATEB::QAB(A)
- P(f);N_GUARD::P(B)
- Refutation
- P(d);
- Try
- B(E);
- Threat
- QAR1(A)
- Vars
- B(c);CHECK,N_GUARD::S(G),XB(c)
- P(b);OGATEB::QAB(A)
- P(f);N_GUARD::P(B)
- Refutation
- P(d);
- Try
- B(E);
- Threat
- QAR1(A)
- Vars
- B(c);CHECK,N_GUARD::S(G),XB(c)
- P(b);OGATEB::QAB(A)
- P(f);N_GUARD::P(B)
- Refutation
- P(d);
- Try
- B(E);
- Threat
- QAR1(A)
- Vars
- B(c);CHECK,N_GUARD::S(G),XB(c)
- P(b);OGATEB::QAB(A)
- P(f);N_GUARD::P(B)
- Refutation
- P(d);
- Try
- B(E);
- Threat
- QAR1(A)
- Vars
- B(c);CHECK,N_GUARD::S(G),XB(c)
- P(b);OGATEB::QAB(A)
- P(f);N_GUARD::P(B)
- Refutation
- P(d);
- Try
- R(D);CHECK
- Refutation
- P(g);P_SPINP(g)
- Try
- Actual
- Q(A);P_PINB(c)
- Threat
- QAR1(A),XB(c)
- Vars
- K(e);P-FLIGHT,P_SPINP(g),XB(E)::QAR2(A),XB(c)
- P(g);::S(G)
- P(h);::S(G)
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).