MESON Chess Problem Database
Problem Display
PID: 229055 (2R2Q2/Bn2r2q/nPb5/1Nk2N1p/2P1Pb2/P7/2R1K3/8 w - - 0 1)
Sorochinski, E
64 Shakhmatnoe obozrenie, 1926
#2
11 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bc7
- 2.bxc7#
- 1...Sc7
- 2.bxc7#
- 1...Sa5
- 2.b7#
- 1...Sd6
- 2.b7#
- 1...Sd8
- 2.b7#
- 1...Bc7
- Tries
- 1.Sbd4?
- threat
- 2.Sb3#
- 2.Se6#
- 2.Rxc6#
- 1...Qg6
- 2.Sb3#
- 1...Qg8
- 2.Sb3#
- 2.Rxc6#
- 1...Qh6
- 2.Sb3#
- 1...Qf7
- 2.Sb3#
- 2.Rxc6#
- 1...Bd6
- 2.Sb3#
- 2.Rxc6#
- 1...Bc7
- 2.Sb3#
- 2.Se6#
- 2.bxc7#
- 1...Sb4
- 2.Sb3#
- 2.Se6#
- 1...Sc7
- 2.Sb3#
- 2.bxc7#
- 1...Sb8
- 2.Sb3#
- 2.Se6#
- 1...Sa5
- 2.Se6#
- 2.b7#
- 1...Sd6
- 2.Sb3#
- 2.Rxc6#
- 2.b7#
- 1...Sd8
- 2.Sb3#
- 2.b7#
- 1...Qxf5!
- threat
- 1.Sc7?
- threat
- 2.Sxa6#
- 2.Se6#
- 1...Bxc7
- 2.bxc7#
- 1...Sxc7
- 2.bxc7#
- 1...Qg6
- 2.Sxa6#
- 1...Qg8
- 2.Sxa6#
- 1...Qh6
- 2.Sxa6#
- 1...Qf7
- 2.Sxa6#
- 1...Bd6
- 2.Sxa6#
- 1...Sb4
- 2.Se6#
- 1...Sb8
- 2.Se6#
- 1...Sd6
- 2.Sxa6#
- 2.b7#
- 1...Sd8
- 2.Sxa6#
- 2.b7#
- 1...Qxf5!
- threat
- 1.Sfd4?
- threat
- 2.Sb3#
- 2.Se6#
- 2.Rxc6#
- 1...Qg6
- 2.Sb3#
- 1...Qf5
- 2.Sb3#
- 2.Rxc6#
- 1...Qg8
- 2.Sb3#
- 2.Rxc6#
- 1...Qh6
- 2.Sb3#
- 1...Qf7
- 2.Sb3#
- 2.Rxc6#
- 1...Bd6
- 2.Sb3#
- 2.Rxc6#
- 1...Bc7
- 2.Sb3#
- 2.Se6#
- 2.bxc7#
- 1...Sb4
- 2.Sb3#
- 2.Se6#
- 1...Sc7
- 2.Sb3#
- 2.bxc7#
- 1...Sb8
- 2.Sb3#
- 2.Se6#
- 1...Sa5
- 2.Se6#
- 2.b7#
- 1...Sd6
- 2.Sb3#
- 2.Rxc6#
- 2.b7#
- 1...Sd8
- 2.Sb3#
- 2.b7#
- 1...Qxe4+!
- threat
- 1.Qf6?
- threat
- 2.Rxc6#
- 2.Qd4#
- 2.Qxc6#
- 1...Qg6
- 2.Rxc6#
- 2.Qd4#
- 1...Qh6
- 2.Rxc6#
- 2.Qd4#
- 1...Qg7
- 2.Rxc6#
- 2.Qxc6#
- 1...Qh8
- 2.Rxc6#
- 2.Qxc6#
- 1...Re5
- 2.Rxc6#
- 2.Qxc6#
- 1...Re6
- 2.Qd4#
- 1...Rc7
- 2.Qd4#
- 2.bxc7#
- 1...Rd7
- 2.Rxc6#
- 2.Qxc6#
- 1...Be3
- 2.Rxc6#
- 2.Qxc6#
- 1...Be5
- 2.Rxc6#
- 2.Qxc6#
- 1...Bd6
- 2.Qd4#
- 1...Bc7
- 2.Qd4#
- 2.bxc7#
- 1...Sb4
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 2.bxc7#
- 1...Sb8
- 2.Qd4#
- 1...Sa5
- 2.Qd4#
- 2.b7#
- 1...Sd6
- 2.Qd4#
- 2.b7#
- 1...Sd8
- 2.Qd4#
- 2.b7#
- 1...Rxe4+!
- threat
- 1.Sbd4?
- Keys
- 1.Sfd6!
- threat
- 2.Sxb7#
- 1...Qxe4+
- 2.Sxe4#
- 1...Rxe4+
- 2.Sxe4#
- 1...Bxd6
- 2.Qf2#
- 1...Sxd6
- 2.b7#
- 1...Sc7
- 2.bxc7#
- 1...Sa5
- 2.b7#
- 1...Sd8
- 2.b7#
- threat
- 1.Sfd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(a);N_SPINB(e),OGATE::B(I)+P(H),XB(a)
- S(d);N_SPINB(e),OGATE::B(I)+P(H),XS(d)
- S(f);OGATE::B(I)+P(H)
- S(f);N_SPINR(g),OGATE::B(I)+P(H)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- Q(h);::S(F)
- Refutation
- Q(h);XS(G)
- Try
- S(F);N_PINB(e)
- Threat
- DUALS(2)
- Vars
- B(a);OGATE,XS(F)::B(I)+P(H),XB(a)
- S(d);OGATE,XS(F)::B(I)+P(H),XS(d)
- Q(h);::S(F),XS(d)
- B(a);N_SPINR(g)::S(F),XS(d)
- S(d);::S(F)
- Refutation
- Q(h);XS(G)
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- Q(h);::S(G)
- Refutation
- Q(h);CHECK,XP(E)
- Try
- Q(K);N_PINR(g)
- Threat
- DUALS(3)
- Vars
- R(g);::QAB1(K)
- B(a);::QAB1(K)
- S(d);::QAB1(K)
- Refutation
- R(g);CHECK,XP(E)
- Try
- Actual
- S(G);N_PINR(g)
- Threat
- S(G),XS(f)
- Vars
- Q(h);CHECK,XP(E)::S(G),XQ(h)
- R(g);CHECK,XP(E)::QAB(K)+S(G),DCHECK,XR(g)
- B(a);OGATE,XS(G)::QAB(K)
- S(f);OGATE,XS(G)::B(I)+P(H)
- S(d);N_SPINB(e),OGATE::B(I)+P(H),XS(d)
- S(f);OGATE::B(I)+P(H)
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).