MESON Chess Problem Database
Problem Display
PID: 149651 (1n2Q3/6p1/3P4/p1Bk2p1/Np2RpN1/5n2/2P5/7K w - - 0 1)
Zhebenev, Valery Oleksandrovich
Praca, 1991
#2
8 + 8
| 15148 | Sadier Collection | 2014 |
| 5454 | Near Snap | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sh4
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sa6
- 2.Qa8#
- 1...Sc6
- 2.Qe6#
- 1...Sd7
- 2.Qa8#
- 1...b3
- 2.c4#
- 1...g6
- 2.Sf6#
- 1...Se1
- Tries
- 1.Bxb4?
- threat
- 2.Sc3#
- 2.Sb6#
- 2.c4#
- 1...Sd4
- 2.Sb6#
- 1...Se5
- 2.Sc3#
- 1...Sd7
- 2.Qa8#
- 1...Sd2
- 2.Sc3#
- 2.Sb6#
- 1...axb4!
- threat
- 1.Rxb4?
- threat
- 2.Qe4#
- 2.c4#
- 1...Sd7
- 2.Qe4#
- 1...Sd2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 2.c4#
- 1...Se5
- 2.Rd4#
- 1...axb4!
- threat
- 1.Rc4?
- threat
- 2.Sb6#
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...Sd2
- 2.Sb6#
- 2.Rd4#
- 1...Sd4
- 2.Sb6#
- 2.Rxd4#
- 1...Se5
- 2.Sb6#
- 2.Rd4#
- 1...Kxc4!
- threat
- 1.Rxf4?
- threat
- 2.Se3#
- 2.Qe4#
- 1...Sd4
- 2.Se3#
- 2.Rxd4#
- 1...Sd7
- 2.Qe4#
- 1...Sd2
- 2.Se3#
- 2.Rd4#
- 1...Se5
- 2.Se3#
- 2.Rd4#
- 1...gxf4!
- threat
- 1.Qc8?
- 1...Sd4
- 2.Rxd4#
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Sh4
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sa6
- 2.Qb7#
- 2.Qa8#
- 1...Sc6
- 2.Qe6#
- 1...Sd7
- 2.Qb7#
- 2.Qa8#
- 1...b3
- 2.Sc3#
- 1...g6
- 2.Sf6#
- 1...Kxe4!
- 1...Sd4
- 1.c3?
- threat
- 2.c4#
- 1...Sd4
- 2.Rxd4#
- 1...Se5
- 2.Rd4#
- 1...Sd7
- 2.Qa8#
- 1...Sd2
- 2.Rd4#
- 1...bxc3!
- threat
- 1.Bxb4?
- Keys
- 1.Qb5!
- 1...Kxe4
- 2.Qd3#
- 1...Se5
- 2.Rxe5#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Sa6
- 2.Qb7#
- 1...Sc6
- 2.Qc4#
- 1...Sd7
- 2.Qb7#
- 1...b3
- 2.Sc3#
- 1...g6
- 2.Sf6#
- 1...Kxe4
- 1.Qb5!
Anticipated by 69999(1962)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 11
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- S(h);OGATE::QAB(H)
- S(h);SBLOCK::QAB1(H)
- P(b);N_GUARD::P(B)
- P(g);N_GUARD::S(E)
- Tries
- Try
- B(F);XP(b)
- Threat
- DUALS(3)
- Vars
- S(a);::S(C)
- S(h);OGATE::QAB(H)
- Refutation
- P(d);XB(F)
- Try
- R(D);XP(b)
- Threat
- DUALS(2)
- Vars
- S(h);::QAB1(H)
- S(a);N_GUARD::R1(D)
- Refutation
- P(d);XR(D)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- S(h);::QAB1(H)
- Refutation
- K(e);S_FLIGHT,XR(D)
- Try
- R(D);XP(c)
- Threat
- DUALS(2)
- Vars
- S(h);::QAB1(H)
- Refutation
- P(f);XR(D)
- Try
- Q(H);
- Vars
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);SBLOCK::QAB1(H)
- P(b);N_GUARD::S(C)
- P(g);N_GUARD::S(E)
- Refutation
- K(e);S_FLIGHT,XR(D)
- Try
- P(B);
- Threat
- P(B)
- Vars
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);OGATE::QAB(H)
- Refutation
- P(b);XP(B)
- Try
- Actual
- Q(H);
- Vars
- K(e);S_FLIGHT,XR(D)::QAB1(H)
- S(a);N_GUARD::R1(D),XS(a)
- S(a);N_GUARD::R1(D)
- S(h);N_GUARD::QAB(H)
- S(h);SBLOCK::QAB1(H)
- P(b);N_GUARD::S(C)
- P(g);N_GUARD::S(E)
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).