MESON Chess Problem Database
Problem Display
PID: 267916 (KN5n/1B5p/3P4/2R5/pPPkN1bQ/4r3/2PP1r2/b2nR1B1 w - - 0 1)
Dolginovich, Nikolai Osipovich
Mat, 1980
#2
13 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.Qf6#
- 1...Rfe2
- 2.Qf6#
- 1...Rg2
- 2.Qf6#
- 1...Rh2
- 2.Qf6#
- 1...Rf6
- 2.Qxf6#
- 1...Rxe1
- 2.Qf6#
- 1...Ree2
- 2.Qf6#
- 1...Ra3
- 2.Sc6#
- 2.Qf6#
- 1...Rb3
- 2.Sc6#
- 2.Qf6#
- 1...Rc3
- 2.Sc6#
- 2.Qf6#
- 1...Rd3
- 2.Sc6#
- 2.Qf6#
- 1...Rf3
- 2.Sc6#
- 1...Rg3
- 2.Sc6#
- 2.Qf6#
- 1...Rh3
- 2.Sc6#
- 2.Qf6#
- 1...Rxe4
- 2.Sc6#
- 2.Rxe4#
- 1...Be2
- 2.Sc6#
- 1...Bf3
- 2.Sc6#
- 2.Qf6#
- 1...Bh3
- 2.Sc6#
- 1...Bf5
- 2.Sc6#
- 2.Qf6#
- 1...Bh5
- 2.Sc6#
- 1...Be6
- 2.Sc6#
- 1...Bc8
- 2.Sc6#
- 1...Sb2
- 2.dxe3#
- 1...Sc3
- 2.dxe3#
- 1...Rxd2
- Tries
- 1.Sc3?
- threat
- 2.Sb5#
- 2.Sc6#
- 1...Rxd2
- 2.Sb5#
- 2.Qf6#
- 1...Rxc3
- 2.Sc6#
- 2.Re4#
- 2.Qf6#
- 2.Qxg4#
- 1...Sxc3
- 2.dxe3#
- 1...Rf8
- 2.Se2#
- 2.Sb5#
- 1...Re8
- 2.Sb5#
- 1...Bxc3!
- threat
- 1.Sg5?
- threat
- 2.Sc6#
- 1...Rf8
- 2.Se6#
- 1...Re8
- 2.Sf3#
- 1...Rxd2!
- threat
- 1.Rxe3?
- threat
- 2.Sc6#
- 2.Rd3#
- 1...Rf8
- 2.Rd3#
- 1...Be2
- 2.Sc6#
- 1...Bd7
- 2.Rd3#
- 1...Sb2
- 2.Sc6#
- 2.c3#
- 1...Sxe3!
- threat
- 1.Qg5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...Rxe4
- 2.Sc6#
- 2.Rxe4#
- 2.Qd5#
- 1...Bf5
- 2.Qf6#
- 2.Qg7#
- 1...Be6
- 2.Qe5#
- 1...Sc3
- 2.Qxe3#
- 2.Qe5#
- 2.dxe3#
- 1...Sg6
- 2.Qd5#
- 1...Sf7
- 2.Qd5#
- 1...Rf5!
- threat
- 1.Qe7?
- threat
- 2.Sc6#
- 2.Qe5#
- 1...Rxe4
- 2.Sc6#
- 2.Rxe4#
- 2.Qxe4#
- 1...Rf5
- 2.Sc6#
- 1...Rf8
- 2.Qe5#
- 1...Bd7
- 2.Qe5#
- 1...Sg6
- 2.Sc6#
- 1...Sf7
- 2.Sc6#
- 1...Be6!
- threat
- 1.Qxg4?
- threat
- 2.Sc6#
- 1...Rf8
- 2.Sf6#
- 1...Rf4!
- threat
- 1.Sc3?
- Keys
- 1.Sg3!
- threat
- 2.Sc6#
- 1...Rxd2
- 2.Qf6#
- 1...Rf8
- 2.Se2#
- 1...Re8
- 2.Sf5#
- threat
- 1.Sg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- R(c);N_GUARD,P_SPINR(d),XP(D)::QAB(H)
- R(c);N_GUARD,P_SPINR(d)::QAB(H)
- R(c);N_GUARD,P_SPINR(d)::QAB(H),XR(c)
- R(d);P_SPINR(c),XR(A)::QAB(H)
- R(d);P_SPINR(c)::QAB(H)
- R(d);P_SPINR(c)::S(M)
- B(g);::S(M)
- S(b);N_GUARD::P(D),XR(d)
- Tries
- Try
- S(G);P_PINB(g)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,SBLOCK,XS(G)::P(D),XR(d)
- R(d);P_PINS(M),P_SPINR(c)::S(G)
- Refutation
- B(a);XS(G)
- Try
- S(G);P_PINB(g)
- Threat
- S(M)
- Vars
- R(c);P_PINS(M),P_SPINR(d)::S(G)
- R(d);N_GUARD,P_PINS(M),P_SPINR(c)::S(G)
- Refutation
- R(c);P_SPINR(d),XP(D)
- Try
- R(A);XR(d)
- Threat
- DUALS(2)
- Vars
- R(c);P_PINS(M)::B(B)+R(A),DCHECK
- B(g);::S(M)
- B(g);::R1(A)
- Refutation
- S(b);XR(A)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(g);::QAB1(H)
- S(i);::QAR1(H)
- Refutation
- R(c);P_SPINR(d)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(c);P_SPINR(d)::S(M)
- R(c);P_PINS(M),P_SPINR(d)::QAB1(H)
- B(g);::QAB1(H)
- S(i);::S(M)
- Refutation
- B(g);
- Try
- Q(H);XB(g)
- Threat
- S(M)
- Vars
- R(c);N_GUARD,P_PINS(M),P_SPINR(d)::QAR(H)+S(G)
- Refutation
- R(c);P_SPINR(d)
- Try
- Actual
- S(G);P_PINB(g)
- Threat
- S(M)
- Vars
- R(c);N_GUARD,P_SPINR(d),XP(D)::QAB(H)
- R(c);N_GUARD,P_PINS(M),P_SPINR(d)::S(G)
- R(d);P_PINS(M),P_SPINR(c)::S(G)
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).