MESON Chess Problem Database
Problem Display
PID: 258483 (2brrb2/8/5PK1/RNp3Qn/2B1k1p1/P2N2pP/5PP1/5n2 w - - 0 1)
Leontieva, Nadezhda Aleksandrovna
Sp. Prize, Leninska Zmina, 1966
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Sc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rd7
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qf5#
- 1...Re7
- 2.Sxc5#
- 1...Bf5+
- 2.Qxf5#
- 1...Ba6
- 2.Qf5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Qf5#
- 1...Bd7
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sxc5#
- 1...Be7
- 2.Qe5#
- 1...Bg7
- 2.Sxc5#
- 1...Sd2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4+
- 2.Qxf4#
- 1...Sxf6
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...gxf2
- 2.Sxf2#
- 1...gxh3
- 2.f3#
- 1...Rd4
- Tries
- 1.Kxh5?
- threat
- 2.Qf4#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Qxe5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sxc5#
- 1...Rxd3!
- threat
- 1.Ra6?
- 1...Bf5+
- 2.Qxf5#
- 1...Sf4+
- 2.Qxf4#
- 1...Bxa6
- 2.Qf5#
- 1...Sxf6
- 2.Qf4#
- 1...gxf2
- 2.Sxf2#
- 1...gxh3
- 2.f3#
- 1...Rd4
- 2.Sc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rd7
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qf5#
- 1...Re7
- 2.Sxc5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Qf5#
- 1...Bd7
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sxc5#
- 1...Be7
- 2.Qe5#
- 1...Bg7
- 2.Sxc5#
- 1...Sd2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg7
- 2.Qf4#
- 1...Rxd3!
- 1...Bf5+
- 1.Ra7?
- 1...Bf5+
- 2.Qxf5#
- 1...Sf4+
- 2.Qxf4#
- 1...Sxf6
- 2.Qf4#
- 1...gxf2
- 2.Sxf2#
- 1...gxh3
- 2.f3#
- 1...Rd4
- 2.Sc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rd7
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qf5#
- 1...Re7
- 2.Sxc5#
- 1...Ba6
- 2.Qf5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Qf5#
- 1...Bd7
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sxc5#
- 1...Be7
- 2.Qe5#
- 1...Bg7
- 2.Sxc5#
- 1...Sd2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg7
- 2.Qf4#
- 1...Rxd3!
- 1...Bf5+
- 1.Ra8?
- 1...Bf5+
- 2.Qxf5#
- 1...Sf4+
- 2.Qxf4#
- 1...Sxf6
- 2.Qf4#
- 1...gxf2
- 2.Sxf2#
- 1...gxh3
- 2.f3#
- 1...Rd4
- 2.Sc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rd7
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qf5#
- 1...Re7
- 2.Sxc5#
- 1...Ba6
- 2.Qf5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Qf5#
- 1...Bd7
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sxc5#
- 1...Be7
- 2.Qe5#
- 1...Bg7
- 2.Sxc5#
- 1...Sd2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg7
- 2.Qf4#
- 1...Rxd3!
- 1...Bf5+
- 1.Qxg4+?
- 1...Sf4+
- 2.Qxf4#
- 1...Bxg4!
- 1...Sf4+
- 1.a4?
- 1...Bf5+
- 2.Qxf5#
- 1...Sf4+
- 2.Qxf4#
- 1...Sxf6
- 2.Qf4#
- 1...gxf2
- 2.Sxf2#
- 1...gxh3
- 2.f3#
- 1...Rd4
- 2.Sc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rd7
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qf5#
- 1...Re7
- 2.Sxc5#
- 1...Ba6
- 2.Qf5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Qf5#
- 1...Bd7
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sxc5#
- 1...Be7
- 2.Qe5#
- 1...Bg7
- 2.Sxc5#
- 1...Sd2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg7
- 2.Qf4#
- 1...Rxd3!
- 1...Bf5+
- 1.h4?
- 1...Bf5+
- 2.Qxf5#
- 1...Sf4+
- 2.Qxf4#
- 1...Sxf6
- 2.Qf4#
- 1...gxf2
- 2.Sxf2#
- 1...Rd4
- 2.Sc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rd7
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qf5#
- 1...Re7
- 2.Sxc5#
- 1...Ba6
- 2.Qf5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Qf5#
- 1...Bd7
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sxc5#
- 1...Be7
- 2.Qe5#
- 1...Bg7
- 2.Sxc5#
- 1...Sd2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg7
- 2.Qf4#
- 1...Rxd3!
- 1...Bf5+
- 1.Kxh5?
- Keys
- 1.Ra4!
- 1...Bf5+
- 2.Qxf5#
- 1...Sf4+
- 2.Qxf4#
- 1...Rxd3
- 2.Bd5#
- 1...Sxf6
- 2.Qf4#
- 1...gxf2
- 2.Sxf2#
- 1...gxh3
- 2.f3#
- 1...Rd4
- 2.Sc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rd7
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qf5#
- 1...Re7
- 2.Sxc5#
- 1...Ba6
- 2.Qf5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Qf5#
- 1...Bd7
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Sxc5#
- 1...Be7
- 2.Qe5#
- 1...Bg7
- 2.Sxc5#
- 1...Sd2
- 2.Qe3#
- 1...Sh2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sg7
- 2.Qf4#
- 1...Bf5+
- 1.Ra4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(h);SBLOCK::S(H)
- R(h);N_GUARD::QAB1(I),XR(h)
- R(h);P_PINP(J),S_CUTB(j)::S(D),XP(e)
- R(h);S_CUTB(g)::QAB1(I)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);P_PINP(J),S_CUTB(g)::QAB1(I)
- R(i);S_CUTB(j)::S(D),XP(e)
- B(g);CHECK,N_GUARD::QAB1(I),XB(g)
- B(g);N_GUARD::QAB1(I)
- B(g);S_CUTR(i)::QAR1(I)
- B(g);S_CUTR(h)::QAB1(I)
- B(j);S_CUTR(h)::QAB1(I)
- B(j);N_GUARD::S(D),XP(e)
- B(j);S_CUTR(i)::QAR1(I)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(f);CHECK,N_GUARD::QAR1(I),XS(f)
- S(f);N_GUARD,XP(J)::QAR1(I)
- S(f);N_GUARD::QAR1(I)
- P(b);XP(A)::S(D),XP(b)
- P(d);N_GUARD,XP(E)::P(A)
- Tries
- Try
- K(K);S_FLIGHT,XS(f)
- Threat
- QAR1(I)
- Vars
- R(h);N_GUARD,P_PINQ(I)::QAB1(I),XR(h)
- R(i);N_GUARD,P_PINQ(I)::QAR1(I),XR(i)
- B(j);S_CUTR(h)::QAB1(I)
- B(j);N_GUARD::S(D),XP(e)
- Refutation
- R(h);XS(D)
- Try
- R(G);
- Vars
- B(g);CHECK,N_GUARD::QAB1(I),XB(g)
- S(f);CHECK,N_GUARD::QAR1(I),XS(f)
- B(g);N_GUARD,XR(G)::QAB1(I)
- S(f);N_GUARD,XP(J)::QAR1(I)
- P(b);XP(A)::S(D),XP(b)
- P(d);N_GUARD,XP(E)::P(A)
- R(h);SBLOCK::S(H)
- R(h);N_GUARD::QAB1(I),XR(h)
- R(h);P_PINP(J),S_CUTB(j)::S(D),XP(e)
- R(h);S_CUTB(g)::QAB1(I)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);P_PINP(J),S_CUTB(g)::QAB1(I)
- R(i);S_CUTB(j)::S(D),XP(e)
- B(g);S_CUTR(i)::QAR1(I)
- B(g);N_GUARD::QAB1(I)
- B(g);S_CUTR(h)::QAB1(I)
- B(j);S_CUTR(h)::QAB1(I)
- B(j);N_GUARD::S(D),XP(e)
- B(j);S_CUTR(i)::QAR1(I)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(f);N_GUARD::QAR1(I)
- Refutation
- R(h);XS(D)
- Try
- R(G);
- Vars
- B(g);CHECK,N_GUARD::QAB1(I),XB(g)
- S(f);CHECK,N_GUARD::QAR1(I),XS(f)
- S(f);N_GUARD,XP(J)::QAR1(I)
- P(b);XP(A)::S(D),XP(b)
- P(d);N_GUARD,XP(E)::P(A)
- R(h);SBLOCK::S(H)
- R(h);N_GUARD::QAB1(I),XR(h)
- R(h);P_PINP(J),S_CUTB(j)::S(D),XP(e)
- R(h);S_CUTB(g)::QAB1(I)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);P_PINP(J),S_CUTB(g)::QAB1(I)
- R(i);S_CUTB(j)::S(D),XP(e)
- B(g);N_GUARD::QAB1(I)
- B(g);S_CUTR(i)::QAR1(I)
- B(g);S_CUTR(h)::QAB1(I)
- B(j);S_CUTR(h)::QAB1(I)
- B(j);N_GUARD::S(D),XP(e)
- B(j);S_CUTR(i)::QAR1(I)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(f);N_GUARD::QAR1(I)
- Refutation
- R(h);XS(D)
- Try
- R(G);
- Vars
- B(g);CHECK,N_GUARD::QAB1(I),XB(g)
- S(f);CHECK,N_GUARD::QAR1(I),XS(f)
- S(f);N_GUARD,XP(J)::QAR1(I)
- P(b);XP(A)::S(D),XP(b)
- P(d);N_GUARD,XP(E)::P(A)
- R(h);SBLOCK::S(H)
- R(h);N_GUARD::QAB1(I),XR(h)
- R(h);P_PINP(J),S_CUTB(j)::S(D),XP(e)
- R(h);S_CUTB(g)::QAB1(I)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);P_PINP(J),S_CUTB(g)::QAB1(I)
- R(i);S_CUTB(j)::S(D),XP(e)
- B(g);N_GUARD::QAB1(I)
- B(g);S_CUTR(i)::QAR1(I)
- B(g);S_CUTR(h)::QAB1(I)
- B(j);S_CUTR(h)::QAB1(I)
- B(j);N_GUARD::S(D),XP(e)
- B(j);S_CUTR(i)::QAR1(I)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(f);N_GUARD::QAR1(I)
- Refutation
- R(h);XS(D)
- Try
- Q(I);CHECK,XP(d)
- Vars
- S(f);CHECK,N_GUARD,P_SPINS(f)::QAR1(I),XS(f)
- Refutation
- B(g);XQ(I)
- Try
- P(C);
- Vars
- B(g);CHECK,N_GUARD::QAB1(I),XB(g)
- S(f);CHECK,N_GUARD::QAR1(I),XS(f)
- S(f);N_GUARD,XP(J)::QAR1(I)
- P(b);XP(A)::S(D),XP(b)
- P(d);N_GUARD,XP(E)::P(A)
- R(h);SBLOCK::S(H)
- R(h);N_GUARD::QAB1(I),XR(h)
- R(h);P_PINP(J),S_CUTB(j)::S(D),XP(e)
- R(h);S_CUTB(g)::QAB1(I)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);P_PINP(J),S_CUTB(g)::QAB1(I)
- R(i);S_CUTB(j)::S(D),XP(e)
- B(g);N_GUARD::QAB1(I)
- B(g);S_CUTR(i)::QAR1(I)
- B(g);S_CUTR(h)::QAB1(I)
- B(j);S_CUTR(h)::QAB1(I)
- B(j);N_GUARD::S(D),XP(e)
- B(j);S_CUTR(i)::QAR1(I)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(f);N_GUARD::QAR1(I)
- Refutation
- R(h);XS(D)
- Try
- P(E);
- Vars
- B(g);CHECK,N_GUARD::QAB1(I),XB(g)
- S(f);CHECK,N_GUARD::QAR1(I),XS(f)
- S(f);N_GUARD,XP(J)::QAR1(I)
- P(b);XP(A)::S(D),XP(b)
- R(h);SBLOCK::S(H)
- R(h);N_GUARD::QAB1(I),XR(h)
- R(h);P_PINP(J),S_CUTB(j)::S(D),XP(e)
- R(h);S_CUTB(g)::QAB1(I)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);P_PINP(J),S_CUTB(g)::QAB1(I)
- R(i);S_CUTB(j)::S(D),XP(e)
- B(g);N_GUARD::QAB1(I)
- B(g);S_CUTR(i)::QAR1(I)
- B(g);S_CUTR(h)::QAB1(I)
- B(j);S_CUTR(h)::QAB1(I)
- B(j);N_GUARD::S(D),XP(e)
- B(j);S_CUTR(i)::QAR1(I)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(f);N_GUARD::QAR1(I)
- Refutation
- R(h);XS(D)
- Try
- Actual
- R(G);
- Vars
- B(g);CHECK,N_GUARD::QAB1(I),XB(g)
- S(f);CHECK,N_GUARD::QAR1(I),XS(f)
- R(h);SBLOCK,XS(D)::R(G)+B(F),DCHECK
- S(f);N_GUARD,XP(J)::QAR1(I)
- P(b);XP(A)::S(D),XP(b)
- P(d);N_GUARD,XP(E)::P(A)
- R(h);SBLOCK::S(H)
- R(h);N_GUARD::QAB1(I),XR(h)
- R(h);P_PINP(J),S_CUTB(j)::S(D),XP(e)
- R(h);S_CUTB(g)::QAB1(I)
- R(i);N_GUARD::QAR1(I),XR(i)
- R(i);P_PINP(J),S_CUTB(g)::QAB1(I)
- R(i);S_CUTB(j)::S(D),XP(e)
- B(g);N_GUARD::QAB1(I)
- B(g);S_CUTR(i)::QAR1(I)
- B(g);S_CUTR(h)::QAB1(I)
- B(j);S_CUTR(h)::QAB1(I)
- B(j);N_GUARD::S(D),XP(e)
- B(j);S_CUTR(i)::QAR1(I)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- S(f);N_GUARD::QAR1(I)
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).