MESON Chess Problem Database
Problem Display
PID: 239867 (2bQ1K2/1qR1pPB1/4kP2/4Nr2/n5Rp/3N2pB/8/2b5 w - - 0 1)
Pituk, Alexander
Themes-64, 1966
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Rxe7#
- 1...Qg2
- 2.Rxe7#
- 1...Qf3
- 2.Rxe7#
- 1...Qe4
- 2.Rxe7#
- 1...Qd5
- 2.Rxe7#
- 2.Qxe7#
- 1...Qa6
- 2.Rxe7#
- 1...Qc6
- 2.Rxc6#
- 2.Rxe7#
- 1...Qa8
- 2.Rxe7#
- 1...Qb1
- 2.Rc6#
- 2.Rxe7#
- 1...Qb2
- 2.Rc6#
- 2.Rxe7#
- 1...Qb3
- 2.Rc6#
- 2.Rxe7#
- 1...Qb5
- 2.Rxe7#
- 1...Qb6
- 2.Rxe7#
- 1...Qa7
- 2.Rc6#
- 1...Qb8
- 2.Rxe7#
- 1...Rf1
- 2.Rf4#
- 1...Rf2
- 2.Rf4#
- 1...Rf3
- 2.Rf4#
- 1...Rf4
- 2.Rxf4#
- 1...Rxe5
- 2.Re4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh5
- 2.Rg5#
- 1...Rxf6
- 2.Rg6#
- 1...Bd7
- 2.Qxd7#
- 1...Qh1
- Tries
- 1.Ke8?
- threat
- 2.f8S#
- 1...Qc6+
- 2.Rxc6#
- 1...Bd7+
- 2.Qxd7#
- 1...Rxe5
- 2.Re4#
- 1...Rxf6
- 2.Rg6#
- 1...Rf1
- 2.Rf4#
- 1...Rf2
- 2.Rf4#
- 1...Rf3
- 2.Rf4#
- 1...Rf4
- 2.Rxf4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh5
- 2.Rg5#
- 1...Qb5+!
- threat
- 1.Sc5+?
- 1...Kxe5
- 2.Qd4#
- 1...Sxc5!
- 1...Kxe5
- 1.Rd4?
- threat
- 2.Qxe7#
- 1...Qxc7
- 2.Qd5#
- 1...exf6
- 2.Rd6#
- 2.Qxf6#
- 2.Qe7#
- 2.Qd6#
- 2.Qe8#
- 1...Qb4
- 2.Qd5#
- 2.Qxc8#
- 1...Ba3!
- threat
- 1.Re4?
- threat
- 2.Sc6#
- 1...Qxe4
- 2.Rxe7#
- 1...Bd7
- 2.Qxd7#
- 1...Bb2
- 2.Sf4#
- 1...Qd5
- 2.Rxe7#
- 2.Qxe7#
- 1...Qc6
- 2.Sxc6#
- 2.Rxc6#
- 2.Rxe7#
- 1...Qb2
- 2.Rc6#
- 2.Rxe7#
- 1...Qb4
- 2.Sc4#
- 1...Qb5
- 2.Rxe7#
- 1...Bf4
- 2.Sxf4#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Qxc7!
- threat
- 1.Rf4?
- threat
- 2.Bxf5#
- 1...Bd7
- 2.Qxd7#
- 1...Qe4
- 2.Rxe7#
- 1...Bxf4!
- threat
- 1.Rg5?
- threat
- 2.Bxf5#
- 1...Bd7
- 2.Qxd7#
- 1...Qf3
- 2.Rxe7#
- 1...Qe4
- 2.Rxe7#
- 1...Bxg5!
- threat
- 1.Rg6?
- threat
- 2.fxe7#
- 1...exf6
- 2.Rxf6#
- 1...Bd7
- 2.Qxd7#
- 1...Bg5!
- threat
- 1.Rxb7?
- threat
- 2.Rxe7#
- 1...Rxe5
- 2.Re4#
- 1...Rxf6
- 2.Rg6#
- 1...Bxb7
- 2.Qd7#
- 1...exf6
- 2.Re7#
- 1...Rf1
- 2.Rf4#
- 1...Rf2
- 2.Rf4#
- 1...Rf3
- 2.Rf4#
- 1...Rf4
- 2.Rxf4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh5
- 2.Rg5#
- 1...Bd7
- 2.Qxd7#
- 1...Ba3!
- threat
- 1.Qxc8+?
- 1...Kd5
- 2.Qd7#
- 1...Kd6
- 2.Qd7#
- 1...Qxc8+!
- 1...Kd5
- 1.Ke8?
- Keys
- 1.Kg8!
- threat
- 2.f8S#
- 1...Rxe5
- 2.Re4#
- 1...Rxf6
- 2.Rg6#
- 1...Rf1
- 2.Rf4#
- 1...Rf2
- 2.Rf4#
- 1...Rf3
- 2.Rf4#
- 1...Rf4
- 2.Rxf4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh5
- 2.Rg5#
- 1...Bd7
- 2.Qxd7#
- threat
- 1.Kg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- Q(g);N_GUARD::R1(F),XP(h)
- Q(g);N_GUARD::R(F)
- R(e);OGATEB::B(B)+R(C)
- R(e);OGATEB::B(B)+R(C),XR(e)
- R(e);OGATEB,XS(D)::B(B)+R(C)
- R(e);OGATEB,P_PINP(G),XP(E)::B(B)+R(C)
- B(i);N_GUARD::QAB1(I),XB(i)
- Tries
- Try
- K(J);P-FLIGHT
- Threat
- P=S
- Vars
- Q(g);CHECK,N_GUARD::R(F),XQ(g)
- B(i);CHECK,N_GUARD::QAB1(I),XB(i)
- R(e);OGATEB,XS(D)::B(B)+R(C)
- R(e);OGATEB,XP(E)::B(B)+R(C)
- R(e);OGATEB::B(B)+R(C)
- R(e);OGATEB::B(B)+R(C),XR(e)
- Refutation
- Q(g);CHECK
- Try
- S(A);CHECK
- Vars
- K(f);P-FLIGHT,XS(D)::QAB1(I)
- Refutation
- S(c);XS(A)
- Try
- R(C);P_PINR(e)
- Threat
- QAR1(I),XP(h)
- Vars
- Q(g);N_GUARD,XR(F)::QAB1(I)
- Refutation
- B(a);
- Try
- R(C);P_PINR(e)
- Threat
- R(C)+S(D)
- Vars
- Q(g);N_GUARD,XR(C)::R1(F),XP(h)
- B(i);N_GUARD::QAB1(I),XB(i)
- B(a);N_GUARD::S(A)
- Q(g);N_GUARD::R(C)+S(D)
- Q(g);N_GUARD::R1(F),XP(h)
- B(a);N_GUARD::S(A),XB(a)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD::S(A),XS(c)
- Refutation
- Q(g);XR(F)
- Try
- R(C);P_PINR(e)
- Threat
- B(B),XR(e)
- Vars
- B(i);N_GUARD::QAB1(I),XB(i)
- Q(g);N_GUARD::R1(F),XP(h)
- Refutation
- B(a);XR(C)
- Try
- R(C);P_PINR(e)
- Threat
- B(B),XR(e)
- Vars
- B(i);N_GUARD::QAB1(I),XB(i)
- Q(g);N_GUARD::R1(F),XP(h)
- Refutation
- B(a);XR(C)
- Try
- R(C);P_PINR(e)
- Threat
- R(C)+P(E),XP(h)
- Vars
- P(h);OGATE,P_SPINP(h),XP(E)::R1(C),XP(h)
- B(i);N_GUARD::QAB1(I),XB(i)
- Refutation
- B(a);
- Try
- R(F);XQ(g)
- Threat
- R1(F),XP(h)
- Vars
- R(e);OGATEB,XS(D)::B(B)+R(C)
- R(e);OGATEB,P_PINP(G),XP(E)::B(B)+R(C)
- B(i);N_GUARD,XR(F)::QAB1(I)
- P(h);XP(E)::R1(F)
- R(e);OGATEB::B(B)+R(C)
- R(e);OGATEB::B(B)+R(C),XR(e)
- B(i);N_GUARD::QAB1(I),XB(i)
- Refutation
- B(a);
- Try
- Q(I);CHECK,XB(i)
- Vars
- K(f);S_FLIGHT::QAR2(I)
- K(f);P-FLIGHT::QAR1(I)
- Refutation
- Q(g);CHECK,XQ(I)
- Try
- Actual
- K(J);P-FLIGHT
- Threat
- P=S
- Vars
- R(e);OGATEB,XS(D)::B(B)+R(C)
- R(e);OGATEB,XP(E)::B(B)+R(C)
- R(e);OGATEB::B(B)+R(C)
- R(e);OGATEB::B(B)+R(C),XR(e)
- R(e);OGATEB,P_PINB(H)::B(B)+R(C),XR(e)
- B(i);N_GUARD::QAB1(I),XB(i)
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).