MESON Chess Problem Database
Problem Display
PID: 179659 (8/3Q4/6B1/Kp6/p7/B1p4r/N1ppb3/rkNR4 w - - 0 1)
Dedeshin, Viktor
Kopnin, Aleksey Grigorevich
3rd HM., Molodoi Leninets, 1974
#2
7 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxa2
- 2.Sxe2#
- 1...Rh1
- 2.Sxc3#
- 1...Rh2
- 2.Sxc3#
- 1...Rd3
- 2.Qxb5#
- 1...Rh4
- 2.Sxc3#
- 1...Rh5
- 2.Sxc3#
- 1...Rh6
- 2.Sxc3#
- 1...Rh7
- 2.Sxc3#
- 1...Rh8
- 2.Sxc3#
- 1...Bxd1
- 2.Qxb5#
- 1...Bd3
- 2.Sxc3#
- 1...Bf3
- 2.Sxc3#
- 2.Qxb5#
- 1...Bg4
- 2.Qxb5#
- 1...Bh5
- 2.Qxb5#
- 1...Rxa2
- Tries
- 1.Bd3?
- threat
- 2.Sxc3#
- 2.Qxb5#
- 1...Rxa2
- 2.Sxe2#
- 1...Rxd3
- 2.Qxb5#
- 1...Bxd3
- 2.Sxc3#
- 1...dxc1Q
- 2.Sxc3#
- 1...dxc1S
- 2.Sxc3#
- 1...dxc1B
- 2.Sxc3#
- 1...dxc1R
- 2.Sxc3#
- 1...Rh4
- 2.Sxc3#
- 1...Rh5
- 2.Sxc3#
- 1...b4!
- threat
- 1.Qxh3?
- threat
- 2.Sxc3#
- 1...Rxa2
- 2.Sxe2#
- 1...b4!
- threat
- 1.Qd3?
- threat
- 2.Sxc3#
- 2.Qxc2#
- 1...Rxa2
- 2.Sxe2#
- 1...Bxd1
- 2.Sxc3#
- 2.Qxb5#
- 1...Bxd3
- 2.Sxc3#
- 1...b4
- 2.Qxc2#
- 1...Rxd3!
- threat
- 1.Qd5?
- threat
- 2.Sxe2#
- 1...Bxd1
- 2.Qxb5#
- 1...dxc1Q
- 2.Rxc1#
- 1...dxc1S
- 2.Rxc1#
- 1...dxc1B
- 2.Rxc1#
- 1...dxc1R
- 2.Rxc1#
- 1...Rh1
- 2.Sxc3#
- 1...Rd3
- 2.Qxb5#
- 1...Bf1
- 2.Se2#
- 1...Bd3
- 2.Sxc3#
- 1...Bf3
- 2.Se2#
- 2.Sxc3#
- 2.Qxb5#
- 1...Bg4
- 2.Se2#
- 2.Qxb5#
- 1...Bh5
- 2.Se2#
- 2.Qxb5#
- 1...Bc4!
- threat
- 1.Bd3?
- Keys
- 1.Qf5!
- threat
- 2.Qxc2#
- 1...Rxa2
- 2.Sxe2#
- 1...Bxd1
- 2.Qxb5#
- 1...Rd3
- 2.Qxb5#
- 1...Bd3
- 2.Sxc3#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(a);SBLOCK,XS(C)::R(B)+S(A),XB(e)
- R(g);N_GUARD::S(C),XP(f)
- R(g);N_SPINP(c),S_CUTB(e)::QAR(G),XP(i)
- B(e);N_GUARD,XR(B)::QAR(G),XP(i)
- B(e);N_SPINP(c),S_CUTR(g)::S(C),XP(f)
- B(e);N_GUARD::QAR(G),XP(i)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(a);SBLOCK,XS(C)::R(B)+S(A),XB(e)
- R(g);N_SPINP(c),XB(F)::QAR(G),XP(i)
- B(e);N_SPINP(c),XB(F)::S(C),XP(f)
- P(d);P_SPINQ(d),XS(A)::S(C),XP(f)
- P(d);P_SPINS(d),XS(A)::S(C),XP(f)
- P(d);P_SPINB(d),XS(A)::S(C),XP(f)
- P(d);P_SPINR(d),XS(A)::S(C),XP(f)
- R(g);::S(C),XP(f)
- Refutation
- P(i);
- Try
- Q(G);XR(g)
- Threat
- S(C),XP(f)
- Vars
- R(a);SBLOCK,XS(C)::R(B)+S(A),XB(e)
- Refutation
- P(i);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(a);SBLOCK,XS(C)::R(B)+S(A),XB(e)
- B(e);N_SPINP(c),XQ(G)::S(C),XP(f)
- P(i);::QAB1(G),XP(c)
- Refutation
- R(g);N_SPINP(c),XQ(G)
- Try
- Q(G);
- Threat
- R(B)+S(A),XB(e)
- Vars
- B(e);N_GUARD,XR(B)::QAR(G),XP(i)
- P(d);OGATE,P_SPINQ(d),XS(A)::R1(B),XQ(d)
- P(d);OGATE,P_SPINS(d),XS(A)::R1(B),XS(d)
- P(d);OGATE,P_SPINB(d),XS(A)::R1(B),XB(d)
- P(d);OGATE,P_SPINR(d),XS(A)::R1(B),XR(d)
- R(g);N_GUARD::S(C),XP(f)
- R(g);N_SPINP(c),S_CUTB(e)::QAR(G),XP(i)
- B(e);::R(B)+S(A)
- B(e);N_SPINP(c),S_CUTR(g)::S(C),XP(f)
- Refutation
- B(e);
- Try
- Actual
- Q(G);
- Threat
- QAB1(G),XP(c)
- Vars
- R(a);SBLOCK,XS(C)::R(B)+S(A),XB(e)
- B(e);N_GUARD,XR(B)::QAR(G),XP(i)
- R(g);N_SPINP(c),S_CUTB(e)::QAR(G),XP(i)
- B(e);N_SPINP(c),S_CUTR(g)::S(C),XP(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).