MESON Chess Problem Database
Problem Display
PID: 204510 (6q1/pP1pb3/k2p1p2/p4P2/p1N5/8/KR2B3/8 w - - 0 1)
Belenky, LI
64 Shakhmatnoe obozrenie, 1925
#2
6 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxc4+
- 2.Bxc4#
- 1...Qd5
- 2.b8S#
- 1...Qe6
- 2.b8S#
- 1...Qf7
- 2.b8S#
- 1...Qh7
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg1
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg2
- 2.b8S#
- 1...Qg3
- 2.Se3#
- 2.b8S#
- 1...Qg4
- 2.b8S#
- 1...Qg5
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg6
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg7
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qa8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qb8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qc8
- 2.bxc8Q#
- 2.bxc8B#
- 1...Qd8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qe8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qf8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qh8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Bd8
- 2.b8S#
- 1...Bf8
- 2.b8S#
- 1...d5
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sd6#
- 1...Qxc4+
- Tries
- 1.Bf1?
- 1...Qxc4+
- 2.Bxc4#
- 1...Qd5
- 2.b8S#
- 1...Qe6
- 2.b8S#
- 1...Qf7
- 2.b8S#
- 1...Qh7
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg1
- 2.b8S#
- 1...Qg2
- 2.b8S#
- 1...Qg3
- 2.Se3#
- 2.b8S#
- 1...Qg4
- 2.b8S#
- 1...Qg5
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg6
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg7
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qa8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qb8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qc8
- 2.bxc8Q#
- 2.bxc8B#
- 1...Qd8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qe8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qf8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qh8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Bd8
- 2.b8S#
- 1...Bf8
- 2.b8S#
- 1...d5
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sd6#
- 1...a3!
- 1...Qxc4+
- 1.Bd3?
- 1...Qxc4+
- 2.Bxc4#
- 1...Qd5
- 2.b8S#
- 1...Qe6
- 2.b8S#
- 1...Qf7
- 2.b8S#
- 1...Qh7
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg1
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg2
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg3
- 2.Se3#
- 2.b8S#
- 1...Qg4
- 2.b8S#
- 1...Qg5
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg6
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg7
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qa8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qb8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qc8
- 2.bxc8Q#
- 2.bxc8B#
- 1...Qd8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qe8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qf8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qh8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Bd8
- 2.b8S#
- 1...Bf8
- 2.b8S#
- 1...d5
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sd6#
- 1...a3!
- 1...Qxc4+
- 1.Rb1?
- 1...Qxc4+
- 2.Bxc4#
- 1...Qd5
- 2.b8S#
- 1...Qe6
- 2.b8S#
- 1...Qf7
- 2.b8S#
- 1...Qh7
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg1
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg2
- 2.b8S#
- 1...Qg3
- 2.Se3#
- 2.b8S#
- 1...Qg4
- 2.b8S#
- 1...Qg5
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg6
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg7
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qa8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qb8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qc8
- 2.bxc8Q#
- 2.bxc8B#
- 1...Qd8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qe8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qf8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qh8
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Bd8
- 2.b8S#
- 1...Bf8
- 2.b8S#
- 1...d5
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Se5#
- 2.Sd6#
- 1...a3!
- 1...Qxc4+
- 1.Bf1?
- Keys
- 1.Ka3!
- 1...Qg3+
- 2.Se3#
- 1...d5+
- 2.Sd6#
- 1...Qxc4
- 2.Bxc4#
- 2.b8S#
- 1...Qd5
- 2.b8S#
- 1...Qe6
- 2.b8S#
- 1...Qf7
- 2.b8S#
- 1...Qh7
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg1
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg2
- 2.b8S#
- 1...Qg4
- 2.b8S#
- 1...Qg5
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg6
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qg7
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 2.b8S#
- 1...Qa8
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qb8
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qc8
- 2.bxc8Q#
- 2.bxc8B#
- 1...Qd8
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qe8
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qf8
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Qh8
- 2.Sd2#
- 2.Se3#
- 2.Se5#
- 2.Sxd6#
- 1...Bd8
- 2.b8S#
- 1...Bf8
- 2.b8S#
- 1...Qg3+
- 1.Ka3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- Q(i);CHECK,OGATE,P_SPINQ(i),XS(D)::B(C),XQ(i)
- Q(i);N_GUARD::P=S
- Q(i);N_GUARD,N_PINS(D)::P=S
- Q(i);N_PINS(D),OGATE::PXQ(i)=Q
- B(h);S_CUTQ(i)::P=S
- Tries
- Try
- B(C);
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XS(D)::B(C),XQ(i)
- Q(i);N_GUARD::P=S
- Q(i);N_GUARD,N_PINS(D)::P=S
- Q(i);N_GUARD,N_PINS(D),P_PINR(B)::P=S
- Q(i);N_PINS(D),OGATE::PXQ(i)=Q
- B(h);S_CUTQ(i)::P=S
- Refutation
- P(a);
- Try
- B(C);
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XS(D)::B(C),XQ(i)
- Q(i);N_GUARD::P=S
- Q(i);N_GUARD,N_PINS(D)::P=S
- Q(i);N_PINS(D),OGATE::PXQ(i)=Q
- B(h);S_CUTQ(i)::P=S
- Refutation
- P(a);
- Try
- R(B);
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XS(D)::B(C),XQ(i)
- Q(i);N_GUARD::P=S
- Q(i);N_GUARD,N_PINS(D),P_PINB(C)::P=S
- Q(i);N_GUARD,N_PINS(D)::P=S
- Q(i);N_PINS(D),OGATE::PXQ(i)=Q
- B(h);S_CUTQ(i)::P=S
- Refutation
- P(a);
- Try
- Actual
- K(A);N_SPINS(D),P-FLIGHT
- Vars
- Q(i);CHECK,N_GUARD::B(C)+S(D)
- P(d);CHECK,S_CUTQ(i)::B(C)+S(D)
- Q(i);N_GUARD::P=S
- Q(i);OGATE::PXQ(i)=Q
- B(h);S_CUTQ(i)::P=S
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).