MESON Chess Problem Database
Problem Display
PID: 173818 (1B6/4Np2/2K3b1/1N1p3r/2k4r/1pP1Ppb1/PP1QP1q1/1n6 w - - 0 1)
Borovik, Boris V
Die Schwalbe, 1984
#2
10 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qd4#
- 1...Rh2
- 2.Qd4#
- 1...Rh3
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Re4
- 2.Qd3#
- 1...Rf4
- 2.Sd6#
- 1...Re5
- 2.Sd6#
- 1...Rf5
- 2.Qd3#
- 1...Rh6
- 2.Qxd5#
- 1...Rh7
- 2.Qxd5#
- 1...Rh8
- 2.Qxd5#
- 1...Be1
- 2.Sd6#
- 1...Bf2
- 2.Sd6#
- 1...Bf4
- 2.Qd4#
- 1...Be5
- 2.Qxd5#
- 1...Bd6
- 2.Sxd6#
- 1...Bd3
- 2.Qxd3#
- 2.exd3#
- 1...Be4
- 2.Qd4#
- 1...Bf5
- 2.Qxd5#
- 1...Sxd2
- 2.Sa3#
- 1...Sa3
- 2.Sxa3#
- 1...Sxc3
- 2.Qxc3#
- 1...f5
- 2.Qd3#
- 2.Qxd5#
- 1...Rh1
- Tries
- 1.Sf5?
- threat
- 2.Qd3#
- 2.Qxd5#
- 1...Qxe2
- 2.Qxd5#
- 1...Rxf5
- 2.Qd3#
- 1...Bxf5
- 2.Qxd5#
- 1...Sxd2
- 2.Sa3#
- 1...Sxc3
- 2.Qxc3#
- 1...bxa2
- 2.Qxd5#
- 1...Rd4
- 2.Qxd4#
- 1...f2
- 2.Qd3#
- 1...d4
- 2.Qd3#
- 1...fxe2!
- threat
- 1.Bf4?
- threat
- 2.Sd6#
- 2.Qd4#
- 1...Rxf4
- 2.Sd6#
- 1...Bxf4
- 2.Qd4#
- 1...Sxd2
- 2.Sa3#
- 2.Sd6#
- 1...Sxc3
- 2.Qxc3#
- 2.Qd4#
- 1...Bd3
- 2.Sd6#
- 2.Qxd3#
- 2.exd3#
- 1...d4
- 2.Sd6#
- 2.Qxd4#
- 1...bxa2!
- threat
- 1.Qd1?
- threat
- 2.Qxb3#
- 2.axb3#
- 1...Qxe2
- 2.axb3#
- 1...Sxc3
- 2.Qxb3#
- 1...bxa2
- 2.Qa4#
- 2.b3#
- 1...fxe2
- 2.axb3#
- 1...Sd2
- 2.Sa3#
- 1...Bc2!
- threat
- 1.Qc2?
- threat
- 2.Qxb3#
- 2.axb3#
- 1...Qxe2
- 2.axb3#
- 1...Sxc3
- 2.Qxb3#
- 2.Qxc3#
- 1...bxa2
- 2.Qa4#
- 2.b3#
- 1...bxc2
- 2.b3#
- 1...fxe2
- 2.axb3#
- 1...Sd2
- 2.Sa3#
- 1...Bxc2!
- threat
- 1.e4?
- threat
- 2.Qd3#
- 2.Qd4#
- 1...Qxe2
- 2.Qd4#
- 1...Rxe4
- 2.Qd3#
- 1...Bxe4
- 2.Qd4#
- 1...Sxd2
- 2.Sa3#
- 1...Sxc3
- 2.Qxc3#
- 2.Qd4#
- 1...fxe2
- 2.Qd4#
- 1...dxe4
- 2.Qd4#
- 1...Qg1
- 2.Qd3#
- 1...Qf2
- 2.Qd3#
- 1...Bf2
- 2.Sd6#
- 2.Qd3#
- 1...Be5
- 2.Qd3#
- 2.Qxd5#
- 1...d4
- 2.Qd3#
- 2.Qxd4#
- 1...bxa2!
- threat
- 1.Sf5?
- Keys
- 1.Be5!
- threat
- 2.Sd6#
- 2.Qxd5#
- 1...Rxe5
- 2.Sd6#
- 1...Bxe5
- 2.Qxd5#
- 1...Sxd2
- 2.Sa3#
- 2.Sd6#
- 1...Sxc3
- 2.Qxc3#
- 1...bxa2
- 2.Qxd5#
- 1...fxe2
- 2.Sd6#
- 1...Rd4
- 2.Sd6#
- 2.Qxd4#
- 1...Bd3
- 2.Sd6#
- 2.Qxd3#
- 2.exd3#
- 1...Be4
- 2.Sd6#
- 2.Qd4#
- 1...f2
- 2.Sd6#
- 1...d4
- 2.Sd6#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 18
- Sets
- R(g);N_GUARD::QAR1(C)
- R(g);N_GUARD::QAR1(C),XR(g)
- R(g);S_CUTB(j)::QAB1(C)
- R(g);S_CUTB(e)::S(G)
- R(i);S_CUTB(e)::S(G)
- R(i);S_CUTB(j)::QAB1(C)
- R(i);N_GUARD::QAB1(C),XP(h)
- B(e);N_GUARD::S(G)
- B(e);S_CUTR(g)::QAR1(C)
- B(e);S_CUTR(i)::QAB1(C),XP(h)
- B(e);N_GUARD::S(G),XB(e)
- B(j);S_CUTR(g)::QAR1(C)
- B(j);S_CUTR(i)::QAB1(C),XP(h)
- S(a);N_GUARD,XQ(C)::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(a);OGATE,XP(E)::QAR1(C),XS(a)
- Tries
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(D)::QAB1(C),XP(h)
- R(i);XS(I)::QAB1(C)
- B(j);XS(I)::QAB1(C),XP(h)
- S(a);N_GUARD,XQ(C)::S(G)
- S(a);OGATE,XP(E)::QAR1(C),XS(a)
- P(c);XP(A)::QAB1(C),XP(h)
- R(g);N_GUARD::QAR1(C),XR(g)
- P(d);::QAB1(C)
- P(h);::QAB1(C)
- Refutation
- P(d);XP(D)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- R(g);XB(J)::S(G)
- B(e);XB(J)::QAR1(C)
- Refutation
- P(c);XP(A)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(D)::P(A),XP(c)
- S(a);XP(E)::QAB1(C),XP(c)
- P(d);XP(D)::P(A),XP(c)
- S(a);N_GUARD::S(G)
- Refutation
- B(j);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(D)::P(A),XP(c)
- P(c);OGATE,XQ(C)::P(B)
- P(d);XP(D)::P(A),XP(c)
- S(a);N_GUARD::S(G)
- Refutation
- B(j);XQ(C)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(D)::QAR1(C)
- R(g);XP(F)::QAB1(C)
- B(j);XP(F)::QAR1(C)
- S(a);N_GUARD,XQ(C)::S(G)
- P(d);XP(D)::QAR1(C)
- P(h);XP(F)::QAR1(C)
- Q(b);::QAB1(C)
- Refutation
- P(c);XP(A)
- Try
- Actual
- B(J);
- Threat
- DUALS(2)
- Vars
- R(i);XB(J)::S(G)
- B(e);XB(J)::QAB1(C),XP(h)
- S(a);OGATE,XP(E)::QAR1(C),XS(a)
- P(c);XP(A)::QAB1(C),XP(h)
- P(d);XP(D)::S(G)
- P(d);::S(G)
- P(h);::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).