MESON Chess Problem Database
Problem Display
PID: 263313 (5bq1/6r1/2p2Qp1/NNrkB1K1/1P6/p4P2/1n4B1/1b5n w - - 0 1)
Malishev, Aleksandr Fedorovich
Szachy, 1988
#2
8 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sxc3#
- 1...Rc7
- 2.Sxc7#
- 1...Re7
- 2.Qd6#
- 1...Ba2
- 2.f4#
- 1...Be4
- 2.fxe4#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sc7#
- 1...Sd3
- 2.f4#
- 1...Sc4
- 2.Sc3#
- 1...Rc3
- Tries
- 1.Bxb2?
- threat
- 2.Qe5#
- 1...Qe6
- 2.Qd4#
- 1...Rc3
- 2.Sxc3#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sc7#
- 1...axb2!
- threat
- 1.Bh2?
- threat
- 2.Qe5#
- 1...Qe6
- 2.Qd4#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sc7#
- 1...Sd3
- 2.f4#
- 1...Sc4
- 2.Sc3#
- 1...Sg3!
- threat
- 1.Bc3?
- threat
- 2.Qe5#
- 1...Rxc3
- 2.Sxc3#
- 1...Qe6
- 2.Qd4#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sc7#
- 1...Sd3
- 2.f4#
- 1...Sc4!
- threat
- 1.Bg3?
- threat
- 2.Qe5#
- 1...Qe6
- 2.Qd4#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sc7#
- 1...Sd3
- 2.f4#
- 1...Sc4
- 2.Sc3#
- 1...Sxg3!
- threat
- 1.Bd4?
- threat
- 2.Qe5#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sc7#
- 1...Sd3
- 2.f4#
- 1...Sc4
- 2.Sc3#
- 1...Qe6!
- threat
- 1.Bf4?
- threat
- 2.Qe5#
- 1...Qe6
- 2.Qd4#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sc7#
- 1...Sc4
- 2.Sc3#
- 1...Sd3!
- threat
- 1.Bd6?
- threat
- 2.Qe5#
- 1...Bxd6
- 2.Qxd6#
- 1...Qe6
- 2.Qd4#
- 1...Be7
- 2.Sc7#
- 1...Sd3
- 2.f4#
- 1...Sc4
- 2.Sc3#
- 1...Re7!
- threat
- 1.Bc7?
- threat
- 2.Qe5#
- 1...Rxc7
- 2.Sxc7#
- 1...Qe6
- 2.Qd4#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Sd3
- 2.f4#
- 1...Sc4
- 2.Sc3#
- 1...Be7!
- threat
- 1.Qxc6+?
- 1...Kxe5
- 2.f4#
- 1...Rxc6!
- 1...Kxe5
- 1.Bxb2?
- Keys
- 1.Bb8!
- threat
- 2.Qe5#
- 1...Qe6
- 2.Qd4#
- 1...Rc7
- 2.Sxc7#
- 1...Re7
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sc7#
- 1...Sd3
- 2.f4#
- 1...Sc4
- 2.Sc3#
- threat
- 1.Bb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(e);N_GUARD::S(E),XR(e)
- R(i);N_GUARD::S(E),XR(i)
- R(i);S_CUTB(j)::QAR1(H)
- B(a);N_GUARD::B(A)+P(B)
- B(a);OGATE::P(B),XB(a)
- B(j);N_GUARD::QAR1(H),XB(j)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- S(c);S_CUTB(a)::B(A)+P(B)
- S(c);S_CUTR(e)::S(E)
- Tries
- Try
- B(F);XS(c)
- Threat
- QAR1(H)
- Vars
- Q(k);SBLOCK::QAR1(H)
- R(e);N_GUARD::S(E),XR(e)
- R(i);S_CUTB(j)::QAR1(H)
- B(j);N_GUARD::QAR1(H),XB(j)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- Refutation
- P(d);XB(F)
- Try
- B(F);
- Threat
- QAR1(H)
- Vars
- Q(k);SBLOCK::QAR1(H)
- R(i);S_CUTB(j)::QAR1(H)
- B(j);N_GUARD::QAR1(H),XB(j)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- S(c);S_CUTB(a)::B(A)+P(B)
- S(c);S_CUTR(e)::S(E)
- Refutation
- S(b);
- Try
- B(F);
- Threat
- QAR1(H)
- Vars
- R(e);XB(F)::S(E),XR(e)
- Q(k);SBLOCK::QAR1(H)
- R(i);S_CUTB(j)::QAR1(H)
- B(j);N_GUARD::QAR1(H),XB(j)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- S(c);S_CUTB(a)::B(A)+P(B)
- Refutation
- S(c);
- Try
- B(F);
- Threat
- QAR1(H)
- Vars
- Q(k);SBLOCK::QAR1(H)
- R(i);S_CUTB(j)::QAR1(H)
- B(j);N_GUARD::QAR1(H),XB(j)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- S(c);S_CUTB(a)::B(A)+P(B)
- S(c);S_CUTR(e)::S(E)
- Refutation
- S(b);XB(F)
- Try
- B(F);
- Threat
- QAR1(H)
- Vars
- R(i);S_CUTB(j)::QAR1(H)
- B(j);N_GUARD::QAR1(H),XB(j)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- S(c);S_CUTB(a)::B(A)+P(B)
- S(c);S_CUTR(e)::S(E)
- Refutation
- Q(k);
- Try
- B(F);
- Threat
- QAR1(H)
- Vars
- Q(k);SBLOCK::QAR1(H)
- R(i);S_CUTB(j)::QAR1(H)
- B(j);N_GUARD::QAR1(H),XB(j)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- S(c);S_CUTR(e)::S(E)
- Refutation
- S(c);
- Try
- B(F);
- Threat
- QAR1(H)
- Vars
- B(j);OGATE,XB(F)::QAR1(H),XB(j)
- Q(k);SBLOCK::QAR1(H)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- S(c);S_CUTB(a)::B(A)+P(B)
- S(c);S_CUTR(e)::S(E)
- Refutation
- R(i);
- Try
- B(F);
- Threat
- QAR1(H)
- Vars
- R(i);XB(F)::S(E),XR(i)
- Q(k);SBLOCK::QAR1(H)
- R(i);S_CUTB(j)::QAR1(H)
- B(j);N_GUARD::QAR1(H),XB(j)
- S(c);S_CUTB(a)::B(A)+P(B)
- S(c);S_CUTR(e)::S(E)
- Refutation
- B(j);P_PINQ(H)
- Try
- Q(H);CHECK,XP(g)
- Vars
- K(f);P-FLIGHT,XB(F)::P(B)
- Refutation
- R(e);XQ(H)
- Try
- Actual
- B(F);
- Threat
- QAR1(H)
- Vars
- Q(k);SBLOCK::QAR1(H)
- R(i);N_GUARD::S(E),XR(i)
- R(i);S_CUTB(j)::QAR1(H)
- B(j);N_GUARD::QAR1(H),XB(j)
- B(j);P_PINQ(H),S_CUTR(i)::S(E)
- S(c);S_CUTB(a)::B(A)+P(B)
- S(c);S_CUTR(e)::S(E)
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).