MESON Chess Problem Database
Problem Display
PID: 232800 (8/5PpQ/6R1/p7/p2p4/N1Pkp3/K1Nn3R/4B2B w - - 0 1)
Karpov, Valery N
Freie Presse, 1968
#2
10 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kxc3
- 2.Rc6#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...dxc3
- 2.Rd6#
- 1...Kxc3
- Tries
- 1.Bxd2?
- threat
- 2.Se1#
- 2.Rxg7#
- 1...exd2
- 2.Rg3#
- 2.Qh3#
- 1...dxc3
- 2.Rd6#
- 2.Rxg7#
- 1...e2!
- threat
- 1.Bf3?
- 1...Kxc3
- 2.Rc6#
- 1...Sxf3
- 2.Rxg7#
- 1...dxc3
- 2.Rd6#
- 1...Se4
- 2.Be2#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2!
- 1...Kxc3
- 1.Bd5?
- 1...Kxc3
- 2.Rc6#
- 1...Se4
- 2.Bc4#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...dxc3!
- 1...Kxc3
- 1.Bc6?
- 1...dxc3
- 2.Rd6#
- 1...Se4
- 2.Bb5#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...Kxc3!
- 1...dxc3
- 1.Ba8?
- 1...Kxc3
- 2.Rc6#
- 1...dxc3
- 2.Rd6#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...Se4!
- 1...Kxc3
- 1.Rxd2+?
- 1...Kxc3
- 2.Rd1#
- 2.Rxd4#
- 2.Rc6#
- 1...exd2!
- 1...Kxc3
- 1.Rg3+?
- 1...Kxc3
- 2.Bxd2#
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...g6!
- 1...Kxc3
- 1.Rg5+?
- 1...Kxc3
- 2.Rc5#
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...g6!
- 1...Kxc3
- 1.Ra6+?
- 1...Kxc3
- 2.Rc6#
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...g6!
- 1...Kxc3
- 1.Rb6+?
- 1...Kxc3
- 2.Rc6#
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...g6!
- 1...Kxc3
- 1.Rc6+?
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...g6!
- 1...Se4
- 1.Rd6+?
- 1...Kxc3
- 2.Rc6#
- 1...Se4
- 2.Bxe4#
- 2.Rxd4#
- 2.Qxe4#
- 1...g6!
- 1...Kxc3
- 1.Re6+?
- 1...Kxc3
- 2.Rc6#
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...g6!
- 1...Kxc3
- 1.Rf6+?
- 1...Kxc3
- 2.Rc6#
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...g6!
- 1...Kxc3
- 1.Rgh6+?
- 1...Kxc3
- 2.Rc6#
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...g6!
- 1...Kxc3
- 1.Rxg7+?
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...Kxc3!
- 1...Se4
- 1.Qh4?
- threat
- 2.Qxd4#
- 1...Kxc3
- 2.Qxd4#
- 1...dxc3
- 2.Rd6#
- 2.Qd8#
- 2.Qd4#
- 1...Sb3
- 2.Be4#
- 2.Qe4#
- 1...Se4
- 2.Bxe4#
- 2.Qxe4#
- 1...Sf3!
- threat
- 1.cxd4?
- 1...Kc3
- 2.Rc6#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...Se4!
- 1...Kc3
- 1.f8Q?
- 1...Kxc3
- 2.Rc6#
- 1...dxc3
- 2.Rd6#
- 2.Qd6#
- 2.Qd8#
- 1...Sb1
- 2.Rxg7#
- 2.Qf5#
- 1...Sf1
- 2.Rxg7#
- 2.Qf5#
- 1...Sb3
- 2.Rxg7#
- 2.Qf5#
- 1...Sf3
- 2.Rxg7#
- 2.Qf5#
- 1...Sc4
- 2.Rxg7#
- 2.Qf5#
- 1...e2
- 2.Rg3#
- 1...Se4!
- 1...Kxc3
- 1.f8S?
- 1...Kxc3
- 2.Rc6#
- 1...dxc3
- 2.Rd6#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...Se4!
- 1...Kxc3
- 1.f8B?
- 1...Kxc3
- 2.Rc6#
- 1...dxc3
- 2.Rd6#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...Se4!
- 1...Kxc3
- 1.f8R?
- 1...Kxc3
- 2.Rc6#
- 1...dxc3
- 2.Rd6#
- 2.Rd8#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...Se4!
- 1...Kxc3
- 1.Bxd2?
- Keys
- 1.Bb7!
- 1...Kxc3
- 2.Rc6#
- 1...dxc3
- 2.Rd6#
- 1...Se4
- 2.Ba6#
- 1...Sb1
- 2.Rxg7#
- 1...Sf1
- 2.Rxg7#
- 1...Sb3
- 2.Rxg7#
- 1...Sf3
- 2.Rxg7#
- 1...Sc4
- 2.Rxg7#
- 1...e2
- 2.Rg3#
- 1...Kxc3
- 1.Bb7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
- P(e);SBLOCK,XP(G)::QAB(J)+R(H),DCHECK
- Tries
- Try
- B(A);XS(a)
- Threat
- DUALS(2)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- S(a);N_GUARD,XB(B)::QAB(J)+R(H),XP(g)
- P(e);SBLOCK,XP(G)::QAB(J)+R(H),DCHECK
- S(a);SBLOCK::B(B)
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- S(a);N_GUARD,SBLOCK::B(B)
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
- Refutation
- P(e);XP(G)
- Try
- B(B);
- Vars
- P(e);SBLOCK,XP(G)::QAB(J)+R(H),DCHECK
- S(a);N_GUARD,SBLOCK::B(B)
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XP(G)
- Try
- B(B);
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- P(e);SBLOCK,XP(G)::QAB(J)+R(H),DCHECK
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
- Refutation
- S(a);
- Try
- R(E);CHECK,XS(a)
- Refutation
- P(c);XR(E)
- Try
- R(H);CHECK,P_PINP(c)
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::B(A),XS(a)
- Refutation
- P(g);
- Try
- R(H);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- Refutation
- P(g);P_SPINP(g)
- Try
- R(H);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- Refutation
- P(g);P_SPINP(g)
- Try
- R(H);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- Refutation
- P(g);P_SPINP(g)
- Try
- R(H);CHECK
- Refutation
- P(g);P_SPINP(g)
- Try
- R(H);CHECK,P_PINP(e)
- Vars
- K(b);N_SPINP(e),P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- Refutation
- P(g);
- Try
- R(H);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- Refutation
- P(g);P_SPINP(g)
- Try
- R(H);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- Refutation
- P(g);P_SPINP(g)
- Try
- R(H);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- Refutation
- P(g);P_SPINP(g)
- Try
- R(H);CHECK,XP(g)
- Refutation
- K(b);P-FLIGHT,P_SPINS(a),XP(G)
- Try
- Q(J);
- Threat
- QAR1(J),XP(e)
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::QAB1(J),XP(e)
- Refutation
- S(a);
- Try
- P(G);XP(e)
- Vars
- K(b);P-FLIGHT,P_SPINS(a)::R(H)
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
- Refutation
- S(a);
- Try
- P(I);
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- P(c);::QAB(J)+R(H),DCHECK
- Refutation
- S(a);
- Try
- P(I);
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- P(e);SBLOCK,XP(G)::QAB(J)+R(H),DCHECK
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
- Refutation
- S(a);
- Try
- P(I);
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- P(e);SBLOCK,XP(G)::QAB(J)+R(H),DCHECK
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
- Refutation
- S(a);
- Try
- P(I);
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
- Refutation
- S(a);
- Try
- Actual
- B(B);
- Vars
- K(b);P-FLIGHT,P_SPINS(a),XP(G)::R(H)
- P(e);SBLOCK,XP(G)::QAB(J)+R(H),DCHECK
- S(a);N_GUARD,SBLOCK::B(B)
- S(a);N_GUARD::QAB(J)+R(H),XP(g)
- P(c);::QAB(J)+R(H),DCHECK
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).