MESON Chess Problem Database
Problem Display
PID: 240586 (b7/2K1N2P/2P1pp2/3Bk3/3p1p2/1N1Q1n2/7n/4r3 w - - 0 1)
Dyachuk, Vasyl Vasilovich
Thema Danicum, 1995
#2
7 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qe2#
- 2.Qe4#
- 1...Rb1
- 2.Qe2#
- 2.Qe4#
- 1...Rc1
- 2.Qe2#
- 2.Qe4#
- 1...Rd1
- 2.Qe2#
- 2.Qe4#
- 1...Rf1
- 2.Qe2#
- 2.Qe4#
- 1...Rg1
- 2.Qe2#
- 2.Qe4#
- 1...Rh1
- 2.Qe2#
- 2.Qe4#
- 1...Re2
- 2.Qxe2#
- 1...Re4
- 2.Qxe4#
- 1...Sg1
- 2.Qxd4#
- 1...Sd2
- 2.Qxd4#
- 1...Sh4
- 2.Qxd4#
- 1...Sg5
- 2.Qxd4#
- 1...exd5
- 2.Qf5#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Ra1
- Tries
- 1.Sd2?
- threat
- 2.Sc4#
- 1...exd5
- 2.Qf5#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Rc1
- 2.Qe2#
- 2.Qe4#
- 1...Sxd2!
- threat
- 1.Sa5?
- threat
- 2.Sc4#
- 1...exd5
- 2.Qf5#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Rc1
- 2.Qe2#
- 2.Qe4#
- 1...Sd2!
- threat
- 1.Sc5?
- threat
- 2.Sd7#
- 1...exd5
- 2.Sg6#
- 2.Qf5#
- 1...Bxc6!
- threat
- 1.Bxf3?
- threat
- 2.Sg6#
- 2.Qb5#
- 2.Qxd4#
- 1...Bxc6
- 2.Sxc6#
- 2.Sg6#
- 2.Qxd4#
- 1...f5
- 2.Qxd4#
- 2.h8Q#
- 2.h8B#
- 1...Rc1
- 2.Sg6#
- 2.Qe2#
- 2.Qe4#
- 2.Qxd4#
- 1...Rd1
- 2.Sg6#
- 2.Qe2#
- 2.Qe4#
- 2.Qb5#
- 1...Rg1
- 2.Qe2#
- 2.Qe4#
- 2.Qb5#
- 2.Qxd4#
- 1...Re4
- 2.Qxe4#
- 2.Qb5#
- 1...Sxf3!
- threat
- 1.Bc4?
- threat
- 2.Sg6#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Rg1
- 2.Qe2#
- 1...Sh4
- 2.Qxd4#
- 1...Re4!
- threat
- 1.Be4?
- threat
- 2.Sg6#
- 1...Rxe4
- 2.Qb5#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Sh4
- 2.Qxd4#
- 1...Rg1!
- threat
- 1.h8S?
- threat
- 2.Shg6#
- 2.Sf7#
- 1...exd5
- 2.Qf5#
- 1...Rg1
- 2.Sf7#
- 2.Qe2#
- 2.Qe4#
- 1...Sh4
- 2.Sf7#
- 2.Qxd4#
- 1...Sg5
- 2.Shg6#
- 2.Qxd4#
- 1...f5!
- threat
- 1.Sd2?
- Keys
- 1.Qb5!
- threat
- 2.Bxf3#
- 1...Bxc6
- 2.Bxc6#
- 1...exd5
- 2.Qxd5#
- 1...f5
- 2.h8Q#
- 2.h8B#
- 1...Rc1
- 2.Qe2#
- 1...Re4
- 2.Bc4#
- 1...Sg1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 1...Sd2
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 1...Sh4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 1...Sg5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::QAR(B),XR(a)
- R(a);N_GUARD::QAR1(B),XR(a)
- S(c);N_GUARD::QAB1(B),XP(d)
- P(g);N_GUARD,XB(C)::QAR1(B)
- P(h);::P=Q
- Tries
- Try
- S(A);
- Threat
- S(A)
- Vars
- P(g);N_GUARD,XB(C)::QAR1(B)
- P(h);::P=Q
- Refutation
- S(c);XS(A)
- Try
- S(A);
- Threat
- S(A)
- Vars
- P(g);N_GUARD,XB(C)::QAR1(B)
- P(h);::P=Q
- Refutation
- S(c);
- Try
- S(A);
- Threat
- S(A)
- Refutation
- B(i);XP(D)
- Try
- B(C);XS(c)
- Threat
- DUALS(3)
- Refutation
- S(b);XB(C)
- Try
- B(C);
- Threat
- S(F)
- Vars
- P(h);::P=Q
- R(a);N_GUARD::QAR(B)
- S(c);N_GUARD::QAB1(B),XP(d)
- Refutation
- R(a);
- Try
- B(C);
- Threat
- S(F)
- Vars
- R(a);SBLOCK,XB(C)::QAR(B)
- P(h);::P=Q
- S(c);N_GUARD::QAB1(B),XP(d)
- Refutation
- R(a);
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- P(g);N_GUARD,XB(C)::QAR1(B)
- Refutation
- P(h);
- Try
- Actual
- Q(B);
- Threat
- QAR(B)+B(C),XS(c)
- Vars
- B(i);OGATE,XP(D)::QAR(B)+B(C),XB(i)
- P(g);OGATE,P_SPINP(g),XB(C)::QAR1(B),XP(g)
- P(h);::P=Q
- R(a);N_GUARD,P_PINP(D)::QAR(B)
- R(a);SBLOCK::QAR(B)+B(C)
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).