MESON Chess Problem Database
Problem Display
PID: 163776 (5N2/p1Kp2P1/1p6/3kp2R/pP3R2/1n2n2q/B1pNP3/2Q3B1 w - - 0 1)
Dimitrov, Nikolai
Variantim, 1989
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.g8Q#
- 2.g8B#
- 1...Qh1
- 2.g8Q#
- 2.g8B#
- 1...Qh2
- 2.g8Q#
- 2.g8B#
- 1...Qf3
- 2.g8Q#
- 2.g8B#
- 1...Qh4
- 2.g8Q#
- 2.g8B#
- 1...Sd1
- 2.Rd4#
- 2.e4#
- 1...Sf1
- 2.Rd4#
- 2.e4#
- 1...Sg2
- 2.Rd4#
- 2.e4#
- 1...Sc4
- 2.e4#
- 1...Sg4
- 2.Rd4#
- 2.e4#
- 2.g8Q#
- 2.g8B#
- 1...Sf5
- 2.e4#
- 2.g8Q#
- 2.g8B#
- 1...Qf1
- Tries
- 1.Sxb3?
- threat
- 2.Rd4#
- 2.Qd2#
- 1...Qxh5
- 2.Qd2#
- 1...axb3
- 2.Qd2#
- 1...Qg4
- 2.Qd2#
- 1...Qh4
- 2.Qd2#
- 2.g8Q#
- 2.g8B#
- 1...Sd1
- 2.Rd4#
- 1...Sf1
- 2.Rd4#
- 1...Sg2
- 2.Rd4#
- 1...Sc4
- 2.Rd4#
- 2.e4#
- 1...Sg4
- 2.Rd4#
- 2.g8Q#
- 2.g8B#
- 1...Sf5
- 2.g8Q#
- 2.g8B#
- 1...Qf5!
- threat
- 1.Sf3?
- threat
- 2.Rd4#
- 2.Rxe5#
- 2.Qd2#
- 1...Qxf3
- 2.Qd2#
- 2.g8Q#
- 2.g8B#
- 1...Qxh5
- 2.Qd2#
- 1...Qg4
- 2.Rxe5#
- 2.Qd2#
- 1...Qe6
- 2.Rd4#
- 2.Qd2#
- 1...Qh4
- 2.Rxe5#
- 2.Qd2#
- 2.g8Q#
- 2.g8B#
- 1...Sf1
- 2.Rd4#
- 2.Rxe5#
- 1...Sc4
- 2.e4#
- 1...Sg4
- 2.Rd4#
- 2.Qd2#
- 2.g8Q#
- 2.g8B#
- 1...Sf5
- 2.g8Q#
- 2.g8B#
- 1...d6
- 2.Rd4#
- 2.Qd2#
- 1...Qf5!
- threat
- 1.Sc4?
- threat
- 2.Rxe5#
- 1...Qxh5
- 2.Sxe3#
- 1...Sxc4
- 2.e4#
- 1...Qf5
- 2.Sxe3#
- 1...Qe6
- 2.Sxe3#
- 1...Sg4
- 2.g8Q#
- 2.g8B#
- 1...Sf5
- 2.g8Q#
- 2.g8B#
- 1...d6!
- threat
- 1.Bxb3+?
- 1...Sc4
- 2.Bxc4#
- 2.Rd4#
- 2.e4#
- 1...axb3!
- 1...Sc4
- 1.Qxc2?
- threat
- 2.Qd3#
- 2.Qe4#
- 1...Sxc2
- 2.e4#
- 1...Qg2
- 2.Qd3#
- 1...Qh1
- 2.Qd3#
- 2.g8Q#
- 2.g8B#
- 1...Qf3
- 2.Qd3#
- 2.g8Q#
- 2.g8B#
- 1...Sd1
- 2.Rd4#
- 2.Qe4#
- 2.Qc4#
- 2.e4#
- 1...Sf1
- 2.Rd4#
- 2.Qe4#
- 2.Qc4#
- 2.e4#
- 1...Sg2
- 2.Rd4#
- 2.Qe4#
- 2.Qc4#
- 2.e4#
- 1...Sc4
- 2.Qe4#
- 2.Qxc4#
- 2.e4#
- 1...Sg4
- 2.Rd4#
- 2.Qe4#
- 2.Qc4#
- 2.e4#
- 2.g8Q#
- 2.g8B#
- 1...Sf5
- 2.Qe4#
- 2.Qc4#
- 2.e4#
- 2.g8Q#
- 2.g8B#
- 1...Qf5!
- threat
- 1.Sxb3?
- Keys
- 1.Sf1!
- threat
- 2.Qd2#
- 1...Sxf1
- 2.Rd4#
- 1...Qf5
- 2.Sxe3#
- 1...Sd1
- 2.Rd4#
- 1...Sg2
- 2.Rd4#
- 1...Sc4
- 2.e4#
- 1...Sg4
- 2.Rd4#
- 2.g8Q#
- 2.g8B#
- 1...Sf5
- 2.g8Q#
- 2.g8B#
- threat
- 1.Sf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(d);N_GUARD::P=Q
- S(c);N_SPINS(b),OGATE::P(E)
- Tries
- Try
- S(D);XS(b)
- Threat
- DUALS(2)
- Vars
- Q(d);N_SPINP(g),XR(H)::QAR(A)
- P(e);N_SPINP(g),P_SPINP(e),XS(D)::QAR(A)
- Q(d);::QAR(A)
- S(c);::R1(G)
- S(c);N_SPINP(g),S_CUTQ(d)::P=Q
- Refutation
- Q(d);N_SPINP(g)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- Q(d);N_SPINP(g),XR(H)::QAR(A)
- S(c);N_SPINS(b),OGATE,SBLOCK::P(E)
- S(c);N_SPINP(g),S_CUTQ(d)::P=Q
- Refutation
- Q(d);N_SPINP(g)
- Try
- S(D);N_PINS(b)
- Threat
- R1(H),XP(g)
- Vars
- Q(d);N_GUARD,N_SPINP(g),XR(H)::S(D),XS(c)
- S(c);OGATE,SBLOCK,XS(D)::P(E)
- Q(d);N_GUARD,N_SPINP(g)::S(D),XS(c)
- Q(d);N_GUARD::S(D),XS(c)
- S(c);S_CUTQ(d)::P=Q
- S(c);N_SPINP(g),S_CUTQ(d)::P=Q
- Refutation
- P(j);
- Try
- B(C);CHECK,XS(b)
- Refutation
- P(e);XB(C)
- Try
- Q(A);XP(a)
- Threat
- DUALS(2)
- Vars
- S(c);OGATE,XQ(A)::P(E)
- Q(d);::QAR2(A)
- Refutation
- Q(d);N_SPINP(g)
- Try
- Actual
- S(D);
- Threat
- QAR(A)
- Vars
- S(c);XS(D)::R1(G)
- Q(d);N_GUARD,N_SPINP(g)::S(D),XS(c)
- S(c);::R1(G)
- S(c);N_SPINS(b),OGATE,SBLOCK::P(E)
- S(c);N_SPINP(g),S_CUTQ(d)::P=Q
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).