MESON Chess Problem Database
Problem Display
PID: 179676 (b3rn2/1B1N2P1/qr1n4/b4p2/2RBp3/P2k4/Pp1P1Qp1/1K1N4 w - - 0 1)
Gorbatenko, Yuri Grigorevich
Kopnin, Aleksey Grigorevich
4th HM., BCF, 1974
#2
11 + 12
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxc4
- 2.Qe3#
- 1...Rb4
- 2.Rc3#
- 1...Rc6
- 2.Sxb2#
- 1...Re5
- 2.Sxe5#
- 1...Rb8
- 2.Se5#
- 1...Rc8
- 2.Se5#
- 1...Rd8
- 2.Se5#
- 1...Bc3
- 2.Rxc3#
- 1...Bb4
- 2.Sxb2#
- 1...Sxc4
- 2.Sc5#
- 1...Sb5
- 2.Sxb2#
- 1...Se6
- 2.Se5#
- 1...Qxc4
- Tries
- 1.Bxb2?
- threat
- 2.Rd4#
- 1...Rxb2+
- 2.Sxb2#
- 1...Kxc4
- 2.Qe2#
- 1...Qxc4
- 2.Qe3#
- 1...Sxc4
- 2.Sc5#
- 1...Rb4
- 2.Rc3#
- 1...Bc3
- 2.Rxc3#
- 1...Se6
- 2.Se5#
- 1...Sb5!
- threat
- 1.Bc3?
- threat
- 2.Rd4#
- 1...Kxc4
- 2.Qe2#
- 1...Qxc4
- 2.Qe3#
- 1...Bxc3
- 2.Rxc3#
- 1...Sxc4
- 2.Sc5#
- 1...Sb5
- 2.Sxb2#
- 1...Se6
- 2.Se5#
- 1...Rb4!
- threat
- 1.Be3?
- threat
- 2.Rd4#
- 1...Kxc4
- 2.Qe2#
- 1...Sxc4
- 2.Sc5#
- 1...Rb4
- 2.Rc3#
- 1...Bc3
- 2.Rxc3#
- 1...Sb5
- 2.Sxb2#
- 1...Se6
- 2.Se5#
- 1...Qxc4!
- threat
- 1.Bc5?
- threat
- 2.Rd4#
- 1...Kxc4
- 2.Qe2#
- 1...Qxc4
- 2.Qe3#
- 1...Rb4
- 2.Rc3#
- 1...Bc3
- 2.Rxc3#
- 1...Sb5
- 2.Sxb2#
- 1...Se6
- 2.Se5#
- 1...Sxc4!
- threat
- 1.Be5?
- threat
- 2.Rd4#
- 1...Kxc4
- 2.Qe2#
- 1...Qxc4
- 2.Qe3#
- 1...Sxc4
- 2.Sc5#
- 1...Rb4
- 2.Rc3#
- 1...Bc3
- 2.Rxc3#
- 1...Sb5
- 2.Sxb2#
- 1...Se6!
- threat
- 1.Bxb6?
- threat
- 2.Sxb2#
- 2.Rd4#
- 1...Kxc4
- 2.Qe2#
- 1...Qxc4
- 2.Sxb2#
- 2.Qe3#
- 1...Bxb6
- 2.Sxb2#
- 2.Rc3#
- 1...Sxc4
- 2.Sc5#
- 1...g1Q
- 2.Rd4#
- 1...g1R
- 2.Rd4#
- 1...Qb5
- 2.Rd4#
- 1...Bc3
- 2.Rxc3#
- 1...Sb5
- 2.Sxb2#
- 1...Se6
- 2.Sxb2#
- 2.Se5#
- 1...Qxb6!
- threat
- 1.Bd5?
- threat
- 2.Sc5#
- 2.Qe3#
- 1...Qxc4
- 2.Qe3#
- 1...Bxd2
- 2.Sc5#
- 1...Sxc4
- 2.Sc5#
- 1...Sxd7
- 2.Qe3#
- 1...g1Q
- 2.Sc5#
- 1...g1B
- 2.Sc5#
- 1...Qb5
- 2.Qe3#
- 1...Qc8
- 2.Qe3#
- 1...Rb5
- 2.Qe3#
- 1...Rc6
- 2.Sxb2#
- 2.Qe3#
- 1...Rc8
- 2.Se5#
- 2.Qe3#
- 1...Bb4
- 2.Sxb2#
- 2.Qe3#
- 1...Sb7
- 2.Qe3#
- 1...Se6
- 2.Se5#
- 2.Qe3#
- 1...e3
- 2.Sc5#
- 1...f4
- 2.Sc5#
- 1...Bxd5!
- threat
- 1.Bxa6?
- threat
- 2.Sc5#
- 2.Rc3#
- 2.Qe3#
- 1...Rxa6
- 2.Sxb2#
- 1...Bxd2
- 2.Sc5#
- 2.Rc3#
- 1...Sxc4
- 2.Sc5#
- 2.Qe3#
- 1...Sxd7
- 2.Rc3#
- 2.Qe3#
- 1...Sb5
- 2.Sxb2#
- 1...e3
- 2.Sc5#
- 1...g1Q
- 2.Sc5#
- 2.Rc3#
- 1...g1B
- 2.Sc5#
- 2.Rc3#
- 1...Rc6
- 2.Sxb2#
- 2.Rc3#
- 2.Qe3#
- 1...Re5
- 2.Sxe5#
- 2.Rc3#
- 2.Qe3#
- 1...Rc8
- 2.Se5#
- 2.Rc3#
- 2.Qe3#
- 1...Bc3
- 2.Sc5#
- 2.Rxc3#
- 2.Qe3#
- 1...Bb4
- 2.Sxb2#
- 2.Rc3#
- 2.Qe3#
- 1...Sb7
- 2.Rc3#
- 2.Qe3#
- 1...Se6
- 2.Se5#
- 2.Rc3#
- 2.Qe3#
- 1...f4
- 2.Sc5#
- 2.Rc3#
- 1...Rb5!
- threat
- 1.Rc2?
- threat
- 2.Sc5#
- 2.Qe3#
- 1...Bxd2
- 2.Sc5#
- 2.Qxd2#
- 1...Sxb7
- 2.Qe3#
- 1...Sxd7
- 2.Qe3#
- 1...Bc3
- 2.Rxc3#
- 1...g1Q
- 2.Sc5#
- 1...g1B
- 2.Sc5#
- 1...Qc4
- 2.Qe3#
- 1...Qb5
- 2.Qe3#
- 1...Rb5
- 2.Qe3#
- 1...Rc6
- 2.Sxb2#
- 2.Qe3#
- 1...Re5
- 2.Sxe5#
- 2.Qe3#
- 1...Rc8
- 2.Se5#
- 2.Qe3#
- 1...Bb4
- 2.Sxb2#
- 2.Qe3#
- 1...Sc4
- 2.Sc5#
- 1...Se6
- 2.Se5#
- 2.Qe3#
- 1...f4
- 2.Sc5#
- 1...e3!
- threat
- 1.Ra4?
- threat
- 2.Sc5#
- 2.Qe3#
- 1...Bxd2
- 2.Sc5#
- 1...Sxb7
- 2.Qe3#
- 1...Sxd7
- 2.Qe3#
- 1...Bb4
- 2.Sxb2#
- 1...g1Q
- 2.Sc5#
- 1...g1B
- 2.Sc5#
- 1...Qc4
- 2.Qe3#
- 1...Qb5
- 2.Qe3#
- 1...Rb5
- 2.Qe3#
- 1...Rc6
- 2.Sxb2#
- 2.Qe3#
- 1...Re5
- 2.Sxe5#
- 2.Qe3#
- 1...Rc8
- 2.Se5#
- 2.Qe3#
- 1...Sc4
- 2.Sc5#
- 1...Se6
- 2.Se5#
- 2.Qe3#
- 1...e3
- 2.Sc5#
- 1...f4
- 2.Sc5#
- 1...Rb4!
- threat
- 1.Rb4?
- threat
- 2.Sxb2#
- 2.Sc5#
- 2.Qe3#
- 1...Bxb4
- 2.Sxb2#
- 1...Sxb7
- 2.Sxb2#
- 2.Qe3#
- 1...Sxd7
- 2.Sxb2#
- 2.Qe3#
- 1...g1Q
- 2.Sc5#
- 1...g1B
- 2.Sxb2#
- 2.Sc5#
- 1...g1R
- 2.Sc5#
- 2.Qe3#
- 1...Qc4
- 2.Sxb2#
- 2.Qe3#
- 1...Qb5
- 2.Sxb2#
- 2.Qe3#
- 1...Rb5
- 2.Sxb2#
- 2.Qe3#
- 1...Rc6
- 2.Sxb2#
- 2.Qe3#
- 1...Re5
- 2.Sxb2#
- 2.Sxe5#
- 2.Qe3#
- 1...Rc8
- 2.Sxb2#
- 2.Se5#
- 2.Qe3#
- 1...Sc4
- 2.Sc5#
- 1...Se6
- 2.Sxb2#
- 2.Se5#
- 2.Qe3#
- 1...e3
- 2.Sxb2#
- 2.Sc5#
- 1...f4
- 2.Sxb2#
- 2.Sc5#
- 1...Rxb4!
- threat
- 1.Bxb2?
- Keys
- 1.Bf6!
- threat
- 2.Rd4#
- 1...Kxc4
- 2.Qe2#
- 1...Qxc4
- 2.Qe3#
- 1...Sxc4
- 2.Sc5#
- 1...Rb4
- 2.Rc3#
- 1...Bc3
- 2.Rxc3#
- 1...Sb5
- 2.Sxb2#
- 1...Se6
- 2.Se5#
- threat
- 1.Bf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(g);SBLOCK,XR(G)::QAR1(E)
- R(h);S_CUTB(e)::R1(G)
- R(h);N_GUARD::S(B),XP(a)
- R(k);N_GUARD::S(J),XR(k)
- R(k);N_GUARD::S(J)
- B(e);N_GUARD::R1(G),XB(e)
- B(e);S_CUTR(h)::S(B),XP(a)
- S(i);SBLOCK,XR(G)::S(J)
- S(i);S_CUTR(h)::S(B),XP(a)
- S(l);S_CUTR(k)::S(J)
- Tries
- Try
- B(H);P_SPINB(H),XP(a)
- Threat
- R1(G)
- Vars
- R(h);CHECK,XB(H)::S(B),XR(h)
- K(c);S_FLIGHT,XR(G)::QAB(E)
- Q(g);SBLOCK,XR(G)::QAR1(E)
- S(i);SBLOCK,XR(G)::S(J)
- R(h);S_CUTB(e)::R1(G)
- B(e);N_GUARD::R1(G),XB(e)
- S(l);S_CUTR(k)::S(J)
- Refutation
- S(i);N_PINB(H)
- Try
- B(H);
- Threat
- R1(G)
- Vars
- K(c);S_FLIGHT,XR(G)::QAB(E)
- Q(g);SBLOCK,XR(G)::QAR1(E)
- B(e);OGATE,XB(H)::R1(G),XB(e)
- S(i);SBLOCK,XR(G)::S(J)
- S(i);S_CUTR(h)::S(B),XP(a)
- S(l);S_CUTR(k)::S(J)
- Refutation
- R(h);
- Try
- B(H);
- Threat
- R1(G)
- Vars
- K(c);S_FLIGHT,XR(G)::QAB(E)
- S(i);SBLOCK,XR(G)::S(J)
- R(h);S_CUTB(e)::R1(G)
- B(e);N_GUARD::R1(G),XB(e)
- S(i);S_CUTR(h)::S(B),XP(a)
- S(l);S_CUTR(k)::S(J)
- Refutation
- Q(g);XR(G)
- Try
- B(H);
- Threat
- R1(G)
- Vars
- K(c);S_FLIGHT,XR(G)::QAB(E)
- Q(g);SBLOCK,XR(G)::QAR1(E)
- R(h);S_CUTB(e)::R1(G)
- B(e);N_GUARD::R1(G),XB(e)
- S(i);S_CUTR(h)::S(B),XP(a)
- S(l);S_CUTR(k)::S(J)
- Refutation
- S(i);XR(G)
- Try
- B(H);
- Threat
- R1(G)
- Vars
- K(c);S_FLIGHT,XR(G)::QAB(E)
- Q(g);SBLOCK,XR(G)::QAR1(E)
- S(i);SBLOCK,XR(G)::S(J)
- R(h);S_CUTB(e)::R1(G)
- B(e);N_GUARD::R1(G),XB(e)
- S(i);S_CUTR(h)::S(B),XP(a)
- Refutation
- S(l);
- Try
- B(H);XR(h)
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT,XR(G)::QAB(E)
- S(i);SBLOCK,XR(G)::S(J)
- P(b);P_PINS(B)::R1(G)
- Q(g);::R1(G)
- B(e);N_GUARD::R1(G),XB(e)
- S(i);::S(B),XP(a)
- Refutation
- Q(g);XB(H)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- Q(g);XR(G)::QAR1(E)
- B(e);XP(D)::S(J)
- S(i);XR(G)::S(J)
- S(l);XS(J)::QAR1(E)
- P(b);P_PINS(B)::S(J)
- P(b);::S(J)
- Q(g);::QAR1(E)
- R(h);::QAR1(E)
- S(i);::QAR1(E)
- P(d);::S(J)
- P(f);::S(J)
- Refutation
- B(j);XB(I)
- Try
- B(I);XQ(g)
- Threat
- DUALS(3)
- Vars
- R(h);N_GUARD,XB(I)::S(B),XP(a)
- S(i);S_CUTR(h)::S(B),XP(a)
- P(d);::S(J)
- Refutation
- R(h);
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- S(i);XB(I)::QAR1(E)
- S(l);XS(J)::QAR1(E)
- B(e);N_GUARD::R1(G),XB(e)
- P(b);P_PINS(B)::S(J)
- P(b);::S(J)
- Q(g);::QAR1(E)
- R(h);::QAR1(E)
- S(i);::S(J)
- P(f);::S(J)
- Refutation
- P(d);
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- B(e);XP(D)::S(J)
- S(i);XB(I)::QAR1(E)
- S(l);XS(J)::QAR1(E)
- B(e);S_CUTR(h)::S(B),XP(a)
- P(b);P_PINS(B)::S(J)
- P(b);::S(J)
- Q(g);::QAR1(E)
- R(h);::QAR1(E)
- S(i);::S(J)
- P(d);::S(J)
- P(f);::S(J)
- Refutation
- R(h);
- Try
- R(G);
- Threat
- DUALS(3)
- Vars
- B(e);XR(G)::S(B),XP(a)
- P(b);P_PINS(B)::S(J)
- S(i);::S(J)
- Refutation
- R(h);XR(G)
- Try
- Actual
- B(H);
- Threat
- R1(G)
- Vars
- K(c);S_FLIGHT,XR(G)::QAB(E)
- Q(g);SBLOCK,XR(G)::QAR1(E)
- S(i);SBLOCK,XR(G)::S(J)
- R(h);S_CUTB(e)::R1(G)
- B(e);N_GUARD::R1(G),XB(e)
- S(i);S_CUTR(h)::S(B),XP(a)
- S(l);S_CUTR(k)::S(J)
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).