MESON Chess Problem Database
Problem Display
PID: 232807 (3r4/3pN3/b4NQ1/p3Bp2/4RP2/3k2pr/B1p3PP/2K5 w - - 0 1)
Karpov, Valery N
Freie Presse, 1984
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxh2
- 2.Qxg3#
- 1...Rh4
- 2.Qxg3#
- 1...Rh5
- 2.Qxg3#
- 1...Rh6
- 2.Qxg3#
- 1...Rh7
- 2.Qxg3#
- 1...Rhh8
- 2.Qxg3#
- 1...Bc4
- 2.Bxc4#
- 1...Bb7
- 2.Bc4#
- 1...Bc8
- 2.Bc4#
- 1...fxe4
- 2.Qxe4#
- 1...Rxh2
- Tries
- 1.Sfd5?
- threat
- 2.Re3#
- 1...Kxe4
- 2.Qxf5#
- 1...fxe4
- 2.Qxa6#
- 1...gxh2!
- threat
- 1.Sed5?
- threat
- 2.Re3#
- 1...fxe4
- 2.Qxe4#
- 1...gxh2!
- threat
- 1.Bb3?
- threat
- 2.Bxc2#
- 1...fxe4
- 2.Qxe4#
- 1...Rc8!
- threat
- 1.Re1?
- threat
- 2.Qxf5#
- 1...Rh5
- 2.Qxg3#
- 1...Bb7!
- threat
- 1.Qxf5?
- threat
- 2.Re1#
- 1...Bb7
- 2.Bc4#
- 1...Rh5!
- threat
- 1.gxh3?
- threat
- 2.Qxg3#
- 1...gxh2
- 2.Qg3#
- 1...fxe4
- 2.Qxe4#
- 1...g2
- 2.Qg3#
- 1...Rg8!
- threat
- 1.Sfd5?
- Keys
- 1.Sg4!
- threat
- 2.Re3#
- 1...Kxe4
- 2.Qxf5#
- 1...gxh2
- 2.Sf2#
- 1...fxe4
- 2.Qxa6#
- 1...fxg4
- 2.Re1#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- R(d);N_GUARD,XP(D)::QAR(I),XP(c)
- R(d);N_GUARD::QAR(I),XP(c)
- B(g);N_GUARD::B(B),XB(g)
- B(g);N_GUARD::B(B)
- P(f);OGATE,P_SPINP(f),XR(E)::QAB1(I),XP(f)
- Tries
- Try
- S(H);
- Threat
- R1(E)
- Vars
- K(b);OGATEB,P_SPINP(f),S_FLIGHT,XR(E)::QAB1(I),XP(f)
- P(f);P_SPINP(f),SBLOCK,XR(E)::QAB(I),XB(g)
- Refutation
- P(c);XP(D)
- Try
- S(J);
- Threat
- R1(E)
- Vars
- P(f);OGATE,P_SPINP(f),XR(E)::QAB1(I),XP(f)
- Refutation
- P(c);XP(D)
- Try
- B(B);
- Threat
- B(B),XP(a)
- Vars
- P(f);OGATE,P_SPINP(f),XR(E)::QAB1(I),XP(f)
- Refutation
- R(i);
- Try
- R(E);P_PINP(f)
- Threat
- QAB(I),XP(f)
- Vars
- R(d);N_GUARD::QAR(I),XP(c)
- Refutation
- B(g);
- Try
- Q(I);XP(f)
- Threat
- QAB(I)+R(E)
- Vars
- B(g);N_GUARD::B(B)
- Refutation
- R(d);
- Try
- P(C);XR(d)
- Threat
- QAR(I),XP(c)
- Vars
- P(c);XP(D)::QAR(I)
- P(f);OGATE,P_SPINP(f),XR(E)::QAB1(I),XP(f)
- P(c);::QAR(I)
- Refutation
- R(i);
- Try
- Actual
- S(H);
- Threat
- R1(E)
- Vars
- K(b);OGATEB,P_SPINP(f),S_FLIGHT,XR(E)::QAB1(I),XP(f)
- P(c);N_GUARD,XP(D)::S(H)
- P(f);P_SPINP(f),SBLOCK,XR(E)::QAB(I),XB(g)
- P(f);OGATEB,XS(H)::QAB(I)+R(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).