MESON Chess Problem Database
Problem Display
PID: 163925 (6QK/6p1/8/1p2p1RN/4kP2/r2nP2R/8/3N3b w - - 0 1)
Dikusarov, Andrey Nikolayovich
Best Problems, 2014
#2
8 + 7
| 5454 | Near Snap | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc3#
- 1...Ra2
- 2.Sc3#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Ra5
- 2.Sc3#
- 1...Ra6
- 2.Sc3#
- 1...Ra7
- 2.Sc3#
- 1...Ra8
- 2.Sc3#
- 2.Qxa8#
- 1...Bf3
- 2.Sg3#
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sxf4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...b4
- 2.Qc4#
- 1...exf4
- 2.Qd5#
- 1...g6
- 2.Sf6#
- 1...Ra1
- Tries
- 1.Kxg7?
- threat
- 2.Sf6#
- 1...Sxf4
- 2.Sf2#
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...Ra6
- 2.Sc3#
- 1...Ra7+!
- threat
- 1.Kh7?
- 1...Sxf4
- 2.Sf2#
- 1...exf4
- 2.Qd5#
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...Ra1
- 2.Sc3#
- 1...Ra2
- 2.Sc3#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Ra5
- 2.Sc3#
- 1...Ra6
- 2.Sc3#
- 1...Ra7
- 2.Sc3#
- 1...Ra8
- 2.Sc3#
- 2.Qxa8#
- 1...Bf3
- 2.Sg3#
- 1...b4
- 2.Qc4#
- 1...g6
- 2.Sf6#
- 1...Bg2!
- 1...Sxf4
- 1.Qe6?
- threat
- 2.Qc6#
- 1...Sxf4
- 2.Sf2#
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...Rc3
- 2.Sxc3#
- 1...Ra6
- 2.Sc3#
- 1...Ra8+!
- threat
- 1.Qf7?
- threat
- 2.Qb7#
- 1...Sxf4
- 2.Sf2#
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...Rc3
- 2.Sxc3#
- 1...Ra6
- 2.Sc3#
- 1...Ra7
- 2.Sc3#
- 1...Ra8+!
- threat
- 1.Qh7+?
- 1...g6
- 2.Sf6#
- 2.Qb7#
- 1...Kd5!
- 1...g6
- 1.fxe5?
- 1...Sxe5
- 2.Sf2#
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sf4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...Ra1
- 2.Sc3#
- 1...Ra2
- 2.Sc3#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Ra5
- 2.Sc3#
- 1...Ra6
- 2.Sc3#
- 1...Ra7
- 2.Sc3#
- 1...Ra8
- 2.Sc3#
- 2.Qxa8#
- 1...Bf3
- 2.Sg3#
- 1...b4
- 2.Qc4#
- 1...g6
- 2.Sf6#
- 1...Bg2!
- 1...Sxe5
- 1.f5?
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sf4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...Ra1
- 2.Sc3#
- 1...Ra2
- 2.Sc3#
- 1...Rb3
- 2.Qa8#
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Ra5
- 2.Sc3#
- 1...Ra6
- 2.Sc3#
- 1...Ra7
- 2.Sc3#
- 1...Ra8
- 2.Sc3#
- 2.Qxa8#
- 1...Bf3
- 2.Sg3#
- 1...b4
- 2.Qc4#
- 1...g6
- 2.Sf6#
- 1...Bg2!
- 1...Sc1
- 1.Kxg7?
- Keys
- 1.Qa2!
- 1...Ra8+
- 2.Qxa8#
- 1...Rxa2
- 2.Sc3#
- 1...Sxf4
- 2.Sf2#
- 1...exf4
- 2.Qd5#
- 1...Rb3
- 2.Qa8#
- 1...Sc1
- 2.Sf2#
- 1...Se1
- 2.Sf2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sb4
- 2.Sf2#
- 1...Sc5
- 2.Sf2#
- 1...Bg2
- 2.Qxg2#
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Ra5
- 2.Sc3#
- 1...Ra6
- 2.Sc3#
- 1...Ra7
- 2.Sc3#
- 1...Bf3
- 2.Sg3#
- 1...b4
- 2.Qc4#
- 1...g6
- 2.Sf6#
- 1...Ra8+
- 1.Qa2!
Anticipated by 4696(1886)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::QAB(G)
- R(b);N_GUARD::S(A),XR(b)
- B(a);SBLOCK::S(F)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- S(c);N_GUARD,XP(D)::S(A)
- P(e);N_GUARD::QAR2(G)
- P(f);XP(D)::QAB1(G)
- P(g);N_GUARD::S(F)
- Tries
- Try
- K(H);S_FLIGHT,XP(g)
- Threat
- S(F)
- Vars
- S(c);N_GUARD,XP(D)::S(A)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- R(b);N_GUARD::S(A)
- Refutation
- R(b);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- S(c);N_GUARD,XP(D)::S(A)
- P(f);XP(D)::QAB1(G)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::QAB(G)
- R(b);N_GUARD::S(A),XR(b)
- B(a);SBLOCK::S(F)
- P(e);N_GUARD::QAR2(G)
- P(g);N_GUARD::S(F)
- Refutation
- B(a);
- Try
- Q(G);P_PINP(f)
- Threat
- QAB(G)
- Vars
- S(c);N_GUARD,XP(D)::S(A)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::S(A)
- Refutation
- R(b);CHECK
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- S(c);N_GUARD,XP(D)::S(A)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::S(A)
- Refutation
- R(b);CHECK
- Try
- Q(G);CHECK
- Refutation
- K(d);P_SPINP(f),S_FLIGHT
- Try
- P(D);XP(f)
- Vars
- S(c);N_GUARD,XP(D)::S(A)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::QAB(G)
- R(b);N_GUARD::S(A),XR(b)
- B(a);SBLOCK::S(F)
- P(e);N_GUARD::QAR2(G)
- P(g);N_GUARD::S(F)
- Refutation
- B(a);
- Try
- P(D);
- Vars
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::QAB(G)
- R(b);N_GUARD::S(A),XR(b)
- B(a);SBLOCK::S(F)
- P(e);N_GUARD::QAR2(G)
- P(g);N_GUARD::S(F)
- Refutation
- B(a);
- Try
- Actual
- Q(G);
- Vars
- R(b);CHECK,OGATE::QAB(G),XR(b)
- R(b);N_GUARD,XQ(G)::S(A)
- S(c);N_GUARD,XP(D)::S(A)
- P(f);XP(D)::QAB1(G)
- R(b);OGATE::QAB(G)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- B(a);N_GUARD::QAB(G),XB(a)
- R(b);N_GUARD::S(A),XR(b)
- R(b);N_GUARD::S(A)
- B(a);SBLOCK::S(F)
- P(e);N_GUARD::QAR2(G)
- P(g);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).