MESON Chess Problem Database
Problem Display
PID: 252323 (3QRbBN/1r3pp1/3pn2p/NbP1k3/4P3/2KP1Rpq/1r6/B7 w - - 0 1)
Kopaev, Viacheslav Georgievich
Zadachi i Etyudi, 2004
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Rf5#
- 1...Qf5
- 2.Rxf5#
- 1...Qh1
- 2.Rf5#
- 1...Qh2
- 2.Rf5#
- 1...Qh4
- 2.Rf5#
- 1...Rc2+
- 2.Kxc2#
- 1...Rd2
- 2.Kxd2#
- 1...Rb3+
- 2.Kxb3#
- 1...Rb4
- 2.Kxb4#
- 1...Rb6
- 2.Sxf7#
- 1...Re7
- 2.Qxd6#
- 1...Rb8
- 2.Sxf7#
- 1...Ba4
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sc6#
- 1...Ba6
- 2.Sc6#
- 1...Bc6
- 2.Sc4#
- 2.Sxc6#
- 1...Bd7
- 2.Sc4#
- 2.Sxf7#
- 1...Bxe8
- 2.Sc4#
- 1...Be7
- 2.Sxf7#
- 1...dxc5
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...f5
- 2.Sg6#
- 2.Rxe6#
- 1...f6
- 2.Sg6#
- 1...g5
- 2.Qf6#
- 1...g6
- 2.Qf6#
- 1...Qg2
- Tries
- 1.Bxb2?
- threat
- 2.Kc2#
- 2.Kd2#
- 2.Kb3#
- 2.Kb4#
- 1...Bxe8
- 2.Sc4#
- 1...dxc5
- 2.Kc2#
- 2.Kd2#
- 2.Kb3#
- 2.Qd5#
- 1...Qg2
- 2.Rf5#
- 1...Qh2
- 2.Rf5#
- 1...Re7
- 2.Qxd6#
- 1...Ba4
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sc6#
- 1...Ba6
- 2.Sc6#
- 1...Bc6
- 2.Sc4#
- 2.Sxc6#
- 1...Bd7
- 2.Sc4#
- 2.Sxf7#
- 1...Be7
- 2.Sxf7#
- 1...d5
- 2.Qxd5#
- 1...Bxd3!
- threat
- 1.Re7?
- threat
- 2.Sxf7#
- 2.Qxd6#
- 1...Rc2+
- 2.Kxc2#
- 1...Rb3+
- 2.Kxb3#
- 1...Rxe7
- 2.Qxd6#
- 1...Bxe7
- 2.Sxf7#
- 1...dxc5
- 2.Sxf7#
- 2.Qd5#
- 1...Qf5
- 2.Rxf5#
- 1...f5
- 2.Rxe6#
- 1...Qh5
- 2.Qxd6#
- 1...Rb6
- 2.Sxf7#
- 1...Rd7
- 2.Sxf7#
- 1...Bd7
- 2.Sc4#
- 2.Sxf7#
- 1...Be8
- 2.Sc4#
- 2.Qxd6#
- 1...d5
- 2.Sxf7#
- 2.Qxd5#
- 2.Qd6#
- 1...f6
- 2.Sg6#
- 2.Sf7#
- 2.Qxd6#
- 1...Bxd3!
- threat
- 1.Qg5+?
- 1...Qf5
- 2.Rxf5#
- 2.Qxf5#
- 1...f5
- 2.Sg6#
- 2.Rxe6#
- 1...hxg5!
- 1...Qf5
- 1.Bxb2?
- Keys
- 1.Bh7!
- threat
- 2.d4#
- 1...Rc2+
- 2.Kxc2#
- 1...Rb3+
- 2.Kxb3#
- 1...Bxd3
- 2.Sc6#
- 1...Bxe8
- 2.Sc4#
- 1...dxc5
- 2.Qd5#
- 1...Qf5
- 2.Rxf5#
- 1...Rd2
- 2.Kxd2#
- 1...Rb4
- 2.Kxb4#
- 1...Re7
- 2.Qxd6#
- 1...Be7
- 2.Sxf7#
- 1...f5
- 2.Sg6#
- 1...g6
- 2.Qf6#
- threat
- 1.Bh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(c);N_GUARD::R1(D)
- Q(c);N_GUARD::R1(D),XQ(c)
- R(a);CHECK::B(A)+K(B),XR(a)
- R(a);::B(A)+K(B),XR(a)
- R(i);N_GUARD::S(K),XP(j)
- R(i);N_SPINS(g),S_CUTB(l)::QAB1(H),XP(f)
- B(d);N_GUARD::S(F)
- B(d);N_GUARD,N_SPINS(g),XR(I)::S(F)
- B(l);N_SPINS(g),S_CUTR(i)::S(K),XP(j)
- P(f);OGATE,XP(G)::QAR1(H)
- P(f);OGATE::QAR1(H),XP(f)
- P(j);N_GUARD::S(K)
- P(k);N_GUARD::QAB1(H)
- Tries
- Try
- B(A);XR(a)
- Threat
- DUALS(4)
- Vars
- B(d);N_GUARD,N_SPINS(g),XR(I)::S(F)
- Q(c);N_GUARD::R1(D)
- R(i);N_SPINS(g),S_CUTB(l)::QAB1(H),XP(f)
- B(d);N_GUARD::S(F)
- B(l);N_SPINS(g),S_CUTR(i)::S(K),XP(j)
- P(f);OGATE::QAR1(H),XP(f)
- Refutation
- B(d);XP(C)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK::B(A)+K(B),XR(a)
- R(i);N_SPINS(g),XR(I)::QAB1(H),XP(f)
- B(l);N_SPINS(g),XR(I)::S(K),XP(j)
- Q(c);N_GUARD::R1(D),XQ(c)
- P(j);N_GUARD,S_CUTQ(c)::R1(I),XS(g)
- Q(c);::QAB1(H),XP(f)
- R(i);::S(K),XP(j)
- Refutation
- B(d);XP(C)
- Try
- Q(H);CHECK
- Refutation
- P(h);XQ(H)
- Try
- Actual
- B(J);
- Threat
- P(C)
- Vars
- R(a);CHECK::B(A)+K(B),XR(a)
- B(d);N_GUARD,XP(C)::S(F)
- B(d);N_GUARD,N_SPINS(g),XR(I)::S(F)
- P(f);OGATE,XP(G)::QAR1(H)
- Q(c);N_GUARD::R1(D),XQ(c)
- R(a);::B(A)+K(B),XR(a)
- R(i);N_SPINS(g),S_CUTB(l)::QAB1(H),XP(f)
- B(l);N_SPINS(g),S_CUTR(i)::S(K),XP(j)
- P(j);N_GUARD::S(K)
- P(k);N_GUARD::QAB1(H)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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