MESON Chess Problem Database
Problem Display
PID: 246331 (8/B1p5/2Q3N1/1P1p2p1/4b2p/2pkNn1B/3b1KP1/3R4 w - - 0 1)
Chepizhni, Viktor Ivanovich
Shakhmatnaya Poeziya, 2002
#2
9 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bf5
- 2.Bxf5#
- 1...Bxg6
- 2.Qxg6#
- 1...Se1
- 2.Se5#
- 1...Sg1
- 2.Se5#
- 1...Sh2
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...c2
- 2.Qxc2#
- 1...d4
- 2.Qc4#
- 1...g4
- 2.Sf4#
- 1...Bf5
- Tries
- 1.Bg4?
- 1...Bxg6
- 2.Qxg6#
- 1...Bf5
- 2.Bxf5#
- 1...Se1
- 2.Se5#
- 2.Be2#
- 1...Sg1
- 2.Se5#
- 1...Sh2
- 2.Se5#
- 2.Be2#
- 1...Sd4
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 2.Be2#
- 1...c2
- 2.Qxc2#
- 1...d4
- 2.Qc4#
- 1...h3!
- 1...Bxg6
- 1.Bd7?
- 1...Bxg6
- 2.Qxg6#
- 1...Bf5
- 2.Bxf5#
- 1...Se1
- 2.Se5#
- 1...Sg1
- 2.Se5#
- 1...Sh2
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...c2
- 2.Qxc2#
- 1...d4
- 2.Qc4#
- 1...g4
- 2.Sf4#
- 1...h3!
- 1...Bxg6
- 1.Bc8?
- 1...Bxg6
- 2.Qxg6#
- 1...Bf5
- 2.Bxf5#
- 1...Se1
- 2.Se5#
- 1...Sg1
- 2.Se5#
- 1...Sh2
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...c2
- 2.Qxc2#
- 1...d4
- 2.Qc4#
- 1...g4
- 2.Sf4#
- 1...h3!
- 1...Bxg6
- 1.Bb6?
- 1...Bxg6
- 2.Qxg6#
- 1...Bf5
- 2.Bxf5#
- 1...Se1
- 2.Se5#
- 1...Sg1
- 2.Se5#
- 1...Sh2
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...c2
- 2.Qxc2#
- 1...d4
- 2.Qc4#
- 1...g4
- 2.Sf4#
- 1...cxb6!
- 1...Bxg6
- 1.Rxd2+?
- 1...Sxd2
- 2.Se5#
- 1...cxd2
- 2.Qc2#
- 1...Kxd2!
- 1...Sxd2
- 1.Qxd5+?
- 1...Sd4
- 2.Se5#
- 2.Qc4#
- 2.Qxd4#
- 1...Bxd5!
- 1...Sd4
- 1.Qxc7?
- 1...Bf5
- 2.Bxf5#
- 1...Se1
- 2.Se5#
- 1...Sg1
- 2.Se5#
- 1...Sh2
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...c2
- 2.Qxc2#
- 1...d4
- 2.Qc4#
- 1...g4
- 2.Sf4#
- 1...Bxg6!
- 1...Bf5
- 1.gxf3?
- threat
- 2.Se5#
- 2.Bf1#
- 1...Bxg6
- 2.Bf1#
- 2.Qxd5#
- 2.Qxg6#
- 1...Bxf3!
- threat
- 1.g3?
- threat
- 2.Bf1#
- 1...Bxg6
- 2.Qxg6#
- 1...Bf5
- 2.Bxf5#
- 1...Sg1
- 2.Se5#
- 1...Sh2
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 1...hxg3+!
- threat
- 1.Bg4?
- Keys
- 1.Qa6!
- 1...Bxg6
- 2.Qxg6#
- 1...Bf5
- 2.Bxf5#
- 1...c2
- 2.Qa3#
- 1...c5
- 2.bxc5 ep#
- 1...Se1
- 2.Se5#
- 1...Sg1
- 2.Se5#
- 1...Sh2
- 2.Se5#
- 1...Sd4
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...d4
- 2.b6#
- 1...g4
- 2.Sf4#
- 1...c6
- 2.bxc6#
- 1...Bxg6
- 1.Qa6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(e);OGATEB::B(E),XB(e)
- B(e);OGATE,XS(H)::QAB(G),XB(e)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- P(b);OGATE::QAB1(G),XP(b)
- P(g);N_GUARD::QAB1(G)
- P(h);N_GUARD::S(H)
- Tries
- Try
- B(E);
- Vars
- B(e);OGATE,XS(H)::QAB(G),XB(e)
- B(e);OGATEB::B(E),XB(e)
- S(d);N_GUARD::S(H)
- P(b);OGATE::QAB1(G),XP(b)
- P(g);N_GUARD::QAB1(G)
- Refutation
- P(f);
- Try
- B(E);
- Vars
- B(e);OGATE,XS(H)::QAB(G),XB(e)
- B(e);OGATEB::B(E),XB(e)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- P(b);OGATE::QAB1(G),XP(b)
- P(g);N_GUARD::QAB1(G)
- P(h);N_GUARD::S(H)
- Refutation
- P(f);
- Try
- B(E);
- Vars
- B(e);OGATE,XS(H)::QAB(G),XB(e)
- B(e);OGATEB::B(E),XB(e)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- P(b);OGATE::QAB1(G),XP(b)
- P(g);N_GUARD::QAB1(G)
- P(h);N_GUARD::S(H)
- Refutation
- P(f);
- Try
- B(I);
- Vars
- B(e);OGATE,XS(H)::QAB(G),XB(e)
- B(e);OGATEB::B(E),XB(e)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- P(b);OGATE::QAB1(G),XP(b)
- P(g);N_GUARD::QAB1(G)
- P(h);N_GUARD::S(H)
- Refutation
- P(i);XB(I)
- Try
- R(A);CHECK,XB(a)
- Vars
- S(d);SBLOCK,XR(A)::S(H)
- P(b);OGATE,XR(A)::QAB1(G)
- Refutation
- K(c);P-FLIGHT,XR(A)
- Try
- Q(G);CHECK,XP(g)
- Refutation
- B(e);XQ(G)
- Try
- Q(G);XP(i)
- Vars
- B(e);OGATEB::B(E),XB(e)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- P(b);OGATE::QAB1(G),XP(b)
- P(g);N_GUARD::QAB1(G)
- P(h);N_GUARD::S(H)
- Refutation
- B(e);XS(H)
- Try
- P(C);XS(d)
- Threat
- DUALS(2)
- Refutation
- B(e);XP(C)
- Try
- P(C);
- Threat
- B(E)
- Vars
- B(e);OGATE,XS(H)::QAB(G),XB(e)
- B(e);OGATEB::B(E),XB(e)
- S(d);N_GUARD::S(H)
- Refutation
- P(f);CHECK,XP(C)
- Try
- Actual
- Q(G);
- Vars
- B(e);OGATE,XS(H)::QAB(G),XB(e)
- B(e);OGATEB::B(E),XB(e)
- P(b);OGATEB::QAR(G)
- P(i);OGATE::QAB(G)+P(F),XP(i),EP
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- P(g);SBLOCK::QAB(G)+P(F)
- P(h);N_GUARD::S(H)
- P(i);OGATE::QAB(G)+P(F),XP(i)
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).