MESON Chess Problem Database
Problem Display
PID: 179668 (1K6/1Q4p1/R7/3Nkb1R/5p1b/1n6/1q1B4/6rB w - - 0 1)
Gorbatenko, Yuri Grigorevich
Kopnin, Aleksey Grigorevich
3rd HM., 64 Shakhmatnoe obozrenie, 1971
#2
7 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Qc7#
- 1...Bg3
- 2.Qxg7#
- 1...Sa1
- 2.Qxb2#
- 1...Sc1
- 2.Qxb2#
- 1...Sxd2
- 2.Qxb2#
- 1...Sd4
- 2.Bxf4#
- 1...Sa5
- 2.Qxb2#
- 1...Sc5
- 2.Qxb2#
- 1...g5
- 2.Qg7#
- 1...Qd4
- Tries
- 1.Se3?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kd4
- 2.Qd5#
- 1...Qxd2
- 2.Qe4#
- 1...Rxh1
- 2.Qd5#
- 1...Sxd2
- 2.Qxb2#
- 1...fxe3
- 2.Qe4#
- 1...Qd4
- 2.Rxf5#
- 1...Qb1
- 2.Qd5#
- 1...Qc2
- 2.Qd5#
- 1...Rg2
- 2.Qd5#
- 1...Rg5
- 2.Qd5#
- 1...Bg5
- 2.Qd5#
- 1...Sa1
- 2.Qxb2#
- 1...Sc1
- 2.Qxb2#
- 1...Sd4
- 2.Sc4#
- 1...Sa5
- 2.Qxb2#
- 1...Sc5
- 2.Qxb2#
- 1...g5
- 2.Qd5#
- 2.Qg7#
- 1...f3!
- threat
- 1.Sb4?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kd4
- 2.Qd5#
- 1...Qxd2
- 2.Qe4#
- 1...Rxh1
- 2.Qd5#
- 1...Sxd2
- 2.Qd5#
- 1...Qb1
- 2.Qd5#
- 1...Qc2
- 2.Qd5#
- 1...Re1
- 2.Qd5#
- 1...Rg2
- 2.Qd5#
- 1...Rg5
- 2.Qd5#
- 1...Bg5
- 2.Qd5#
- 1...Sc5
- 2.Qd5#
- 1...f3
- 2.Qd5#
- 1...g5
- 2.Qd5#
- 2.Qg7#
- 1...Qd4!
- threat
- 1.Sxf4?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kd4
- 2.Qd5#
- 1...Qxd2
- 2.Qe4#
- 1...Rxh1
- 2.Qd5#
- 1...Qd4
- 2.Re6#
- 1...Qb1
- 2.Qd5#
- 1...Qc2
- 2.Qd5#
- 1...Re1
- 2.Qd5#
- 1...Rg2
- 2.Qd5#
- 1...Rg5
- 2.Qd5#
- 1...Bg5
- 2.Qd5#
- 1...Sa1
- 2.Qxb2#
- 1...Sc1
- 2.Qxb2#
- 1...Sd4
- 2.Sd3#
- 1...Sa5
- 2.Qxb2#
- 1...Sc5
- 2.Qxb2#
- 1...g5
- 2.Qd5#
- 2.Qg7#
- 1...Sxd2!
- threat
- 1.Sc7?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kd4
- 2.Qd5#
- 1...Qxd2
- 2.Qe4#
- 1...Rxh1
- 2.Qd5#
- 1...Sxd2
- 2.Qxb2#
- 1...Qd4
- 2.Re6#
- 1...Qb1
- 2.Qd5#
- 1...Qc2
- 2.Qd5#
- 1...Re1
- 2.Qd5#
- 1...Rg2
- 2.Qd5#
- 1...Rg5
- 2.Qd5#
- 1...Bg5
- 2.Qd5#
- 1...Sa1
- 2.Qxb2#
- 1...Sc1
- 2.Qxb2#
- 1...Sa5
- 2.Qxb2#
- 1...Sc5
- 2.Qxb2#
- 1...f3
- 2.Qd5#
- 1...g5
- 2.Qd5#
- 1...Sd4!
- threat
- 1.Se7?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kd4
- 2.Qd5#
- 1...Qxd2
- 2.Qe4#
- 1...Rxh1
- 2.Qd5#
- 1...Sxd2
- 2.Qxb2#
- 1...Qd4
- 2.Rxf5#
- 1...Qb1
- 2.Qd5#
- 1...Qc2
- 2.Qd5#
- 1...Re1
- 2.Qd5#
- 1...Rg2
- 2.Qd5#
- 1...Rg5
- 2.Qd5#
- 1...Bg5
- 2.Qd5#
- 1...Sa1
- 2.Qxb2#
- 1...Sc1
- 2.Qxb2#
- 1...Sa5
- 2.Qxb2#
- 1...Sc5
- 2.Qxb2#
- 1...f3
- 2.Qd5#
- 1...g5
- 2.Qd5#
- 1...Sd4!
- threat
- 1.Qxg7+?
- 1...Bf6
- 2.Qxf6#
- 1...Rxg7!
- 1...Bf6
- 1.Se3?
- Keys
- 1.Sf6!
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kd4
- 2.Qd5#
- 1...Qxd2
- 2.Qe4#
- 1...Sxd2
- 2.Qxb2#
- 1...Qd4
- 2.Qe7#
- 1...Qb1
- 2.Qd5#
- 1...Qc2
- 2.Qd5#
- 1...Re1
- 2.Qd5#
- 1...Rg5
- 2.Qd5#
- 1...Bg5
- 2.Qd5#
- 1...Sa1
- 2.Qxb2#
- 1...Sc1
- 2.Qxb2#
- 1...Sd4
- 2.Sd7#
- 1...Sa5
- 2.Qxb2#
- 1...Sc5
- 2.Qxb2#
- 1...g5
- 2.Qd5#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- Q(b);SBLOCK::QAB(F)
- B(e);N_GUARD,S_CUTR(a)::QAB(F),XP(h)
- S(c);OGATE,P_PINQ(F)::QAB(F),XQ(b)
- S(c);OGATE,P_PINQ(F),XB(B)::QAB(F),XQ(b)
- S(c);P_PINQ(F),SBLOCK::B(B),XP(d)
- P(h);N_SPINB(g),S_CUTB(e),S_CUTR(a)::QAB(F)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINB(g),S_FLIGHT::QAR1(F)
- Q(b);XB(B)::QAR1(F)
- R(a);XB(A)::QAR1(F)
- S(c);OGATE,P_PINQ(F),XB(B)::QAB(F),XQ(b)
- P(d);XS(C)::QAR1(F)
- Q(b);SBLOCK::R1(D),XB(g)
- Q(b);::QAR1(F)
- R(a);::QAR1(F)
- R(a);N_SPINB(g)::QAR1(F)
- B(e);N_SPINB(g)::QAR1(F)
- S(c);OGATE,P_PINQ(F)::QAB(F),XQ(b)
- S(c);P_PINQ(F),SBLOCK::S(C)
- Refutation
- P(d);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINB(g),S_FLIGHT::QAR1(F)
- Q(b);XB(B)::QAR1(F)
- R(a);XB(A)::QAR1(F)
- S(c);XB(B)::QAR1(F)
- Q(b);::QAR1(F)
- R(a);::QAR1(F)
- R(a);N_SPINB(g)::QAR1(F)
- B(e);N_SPINB(g)::QAR1(F)
- S(c);::QAR1(F)
- P(d);::QAR1(F)
- Refutation
- Q(b);
- Try
- S(C);XP(d)
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINB(g),S_FLIGHT::QAR1(F)
- Q(b);XB(B)::QAR1(F)
- R(a);XB(A)::QAR1(F)
- Q(b);SBLOCK::R1(E)
- Q(b);::QAR1(F)
- R(a);::QAR1(F)
- R(a);N_SPINB(g)::QAR1(F)
- B(e);N_SPINB(g)::QAR1(F)
- S(c);OGATE,P_PINQ(F)::QAB(F),XQ(b)
- S(c);P_PINQ(F),SBLOCK::S(C)
- Refutation
- S(c);P_PINQ(F),XB(B)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINB(g),S_FLIGHT::QAR1(F)
- Q(b);XB(B)::QAR1(F)
- R(a);XB(A)::QAR1(F)
- S(c);OGATE,P_PINQ(F),XB(B)::QAB(F),XQ(b)
- Q(b);SBLOCK::R1(E)
- Q(b);::QAR1(F)
- R(a);::QAR1(F)
- R(a);N_SPINB(g)::QAR1(F)
- B(e);N_SPINB(g)::QAR1(F)
- S(c);OGATE,P_PINQ(F)::QAB(F),XQ(b)
- P(d);::QAR1(F)
- P(h);N_SPINB(g)::QAR1(F)
- Refutation
- S(c);P_PINQ(F)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINB(g),S_FLIGHT::QAR1(F)
- Q(b);XB(B)::QAR1(F)
- R(a);XB(A)::QAR1(F)
- S(c);OGATE,P_PINQ(F),XB(B)::QAB(F),XQ(b)
- Q(b);SBLOCK::R1(D),XB(g)
- Q(b);::QAR1(F)
- R(a);::QAR1(F)
- R(a);N_SPINB(g)::QAR1(F)
- B(e);N_SPINB(g)::QAR1(F)
- S(c);OGATE,P_PINQ(F)::QAB(F),XQ(b)
- P(d);::QAR1(F)
- P(h);N_SPINB(g)::QAR1(F)
- Refutation
- S(c);P_PINQ(F)
- Try
- Q(F);CHECK,XP(h)
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- Refutation
- R(a);XQ(F)
- Try
- Actual
- S(C);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINB(g),S_FLIGHT::QAR1(F)
- Q(b);XB(B)::QAR1(F)
- S(c);OGATE,P_PINQ(F),XB(B)::QAB(F),XQ(b)
- Q(b);SBLOCK::QAR2(F)
- Q(b);::QAR1(F)
- R(a);::QAR1(F)
- R(a);N_SPINB(g)::QAR1(F)
- B(e);N_SPINB(g)::QAR1(F)
- S(c);OGATE,P_PINQ(F)::QAB(F),XQ(b)
- S(c);P_PINQ(F),SBLOCK::S(C)
- P(h);N_SPINB(g)::QAR1(F)
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).