MESON Chess Problem Database
Problem Display
PID: 65214 (3N4/5p1K/pQ3B2/P1rk2pN/6P1/8/2B5/8 w - - 0 1)
Melnichuk, Aleksandr Nikolaevich
Shmatov, Vladimir Afanasievich
StrateGems, 2006
#2
8 + 5
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rc3
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Kc4
- Tries
- 1.Kh6?
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc3
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Rc4!
- 1...Kc4
- 1.Kg7?
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc3
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Rc4!
- 1...Kc4
- 1.Kg8?
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc3
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Rc4!
- 1...Kc4
- 1.Kh8?
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc3
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Rc4!
- 1...Kc4
- 1.Sg3?
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Bb3#
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc3
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Rc4!
- 1...Kc4
- 1.Sf4+?
- 1...Kc4
- 2.Bb3#
- 2.Bd3#
- 2.Qb3#
- 1...gxf4!
- 1...Kc4
- 1.Sg7?
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc3
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Rc4!
- 1...Kc4
- 1.Bb3+?
- 1...Rc4
- 2.Qd4#
- 2.Qc6#
- 1...Ke4!
- 1...Rc4
- 1.Bd3?
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc1
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Rc3
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...Rc4!
- 1...Rxa5
- 1.Ba1?
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc4
- 2.Sf6#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Rc3!
- 1...Kc4
- 1.Bb2?
- 1...Kc4
- 2.Qb3#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc4
- 2.Sf6#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Rc3!
- 1...Kc4
- 1.Bc3?
- 1...Kc4
- 2.Qb3#
- 1...Rxa5
- 2.Qd4#
- 2.Qc6#
- 1...Rc6
- 2.Qd4#
- 2.Qxc6#
- 1...Rc4
- 2.Sf6#
- 1...Rb5
- 2.Qd4#
- 2.Qc6#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Rxc3!
- 1...Kc4
- 1.Qb7+?
- 1...Kc4
- 2.Qb3#
- 1...Rc6
- 2.Qxc6#
- 1...Kd6!
- 1...Kc4
- 1.Kh6?
- Keys
- 1.Be5!
- 1...Kc4
- 2.Qb3#
- 1...Kxe5
- 2.Qxc5#
- 1...Rxc2
- 2.Qd4#
- 1...Rxa5
- 2.Qd4#
- 1...Rc4
- 2.Qd6#
- 1...Rc3
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 1...Rc6
- 2.Qd4#
- 1...Rc7
- 2.Qd4#
- 1...Rc8
- 2.Qd4#
- 1...f5
- 2.Qe6#
- 1...f6
- 2.Qe6#
- 1...Kc4
- 1.Be5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);OGATE::QAR1(E)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);OGATE::QAR1(E)
- Refutation
- R(a);
- Try
- K(G);P-FLIGHT
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);OGATE::QAR1(E)
- Refutation
- R(a);
- Try
- K(G);S_FLIGHT
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);OGATE::QAR1(E)
- R(a);OGATE,P_PINS(H)::QAR1(E)
- Refutation
- R(a);
- Try
- K(G);P-FLIGHT
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);OGATE::QAR1(E)
- R(a);OGATE,P_PINS(H)::QAR1(E)
- Refutation
- R(a);
- Try
- S(D);
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);OGATE::QAR1(E)
- Refutation
- R(a);
- Try
- S(D);CHECK
- Refutation
- P(c);XS(D)
- Try
- S(D);
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);OGATE::QAR1(E)
- Refutation
- R(a);
- Try
- B(A);CHECK
- Refutation
- K(b);S_FLIGHT
- Try
- B(A);
- Vars
- R(a);OGATE::QAR1(E)
- Refutation
- R(a);
- Try
- B(F);
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);SBLOCK::S(D)
- R(a);OGATE::QAR1(E)
- P(e);N_GUARD::QAB1(E)
- Refutation
- R(a);
- Try
- B(F);
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);SBLOCK::S(D)
- R(a);OGATE::QAR1(E)
- P(e);N_GUARD::QAB1(E)
- Refutation
- R(a);
- Try
- B(F);
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);SBLOCK::S(D)
- R(a);OGATE::QAR1(E)
- P(e);N_GUARD::QAB1(E)
- Refutation
- R(a);XB(F)
- Try
- Q(E);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(E)
- R(a);N_GUARD,P_SPINR(a)::QAB1(E),XR(a)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- B(F);
- Vars
- K(b);S_FLIGHT::QAB1(E)
- K(b);P-FLIGHT,XB(F)::QAR2(E),XR(a)
- R(a);OGATE,XB(A)::QAR1(E)
- R(a);OGATE,XP(C)::QAR1(E)
- R(a);SBLOCK::QAR1(E)
- R(a);OGATE::QAR1(E)
- P(e);N_GUARD::QAB1(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).