MESON Chess Problem Database
Problem Display
PID: 117594 (1nNr4/1q6/r1p4R/2Nk4/2RPp2K/3PP3/1Q6/3b4 w - - 0 1)
Markovtsy, Vassyl Yuriovich
Intelectualie Egri, 1992
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qa8
- 2.Se7#
- 1...Qxb2
- 2.Se7#
- 1...Qb3
- 2.Se7#
- 1...Qb4
- 2.Se7#
- 1...Qb5
- 2.Se7#
- 1...Qb6
- 2.Se7#
- 1...Qe7+
- 2.Sxe7#
- 1...Rd6
- 2.Rxd6#
- 1...Re8
- 2.Rd6#
- 1...Rf8
- 2.Rd6#
- 1...Rg8
- 2.Rd6#
- 1...Bc2
- 2.Rh5#
- 1...Bb3
- 2.Rh5#
- 1...Ba4
- 2.Rh5#
- 1...Bh5
- 2.Rxh5#
- 1...Sd7
- 2.Se7#
- 2.Rd6#
- 1...Qa8
- Tries
- 1.Sxe4?
- threat
- 2.Sc3#
- 2.Rc5#
- 1...Qe7+
- 2.Sxe7#
- 1...Qxb2
- 2.Se7#
- 2.Rc5#
- 1...Qb3
- 2.Se7#
- 2.Rc5#
- 1...Qb5
- 2.Sc3#
- 2.Se7#
- 1...Qb6
- 2.Sc3#
- 2.Se7#
- 1...Qa7
- 2.Sc3#
- 1...Ra3
- 2.Rc5#
- 1...Ra5
- 2.Sc3#
- 1...Sd7
- 2.Sc3#
- 2.Se7#
- 2.Rd6#
- 1...c5
- 2.Sc3#
- 2.Rxc5#
- 1...Qb4!
- threat
- 1.Sxb7?
- threat
- 2.Se7#
- 2.Rc5#
- 1...Rxc8
- 2.Rc5#
- 2.Rd6#
- 1...Ra5
- 2.Sb6#
- 2.Se7#
- 1...Rd7
- 2.Rc5#
- 1...Re8
- 2.Rc5#
- 2.Rd6#
- 1...Sd7
- 2.Se7#
- 2.Rd6#
- 1...c5
- 2.Se7#
- 2.Rxc5#
- 1...exd3!
- threat
- 1.Rc2?
- threat
- 2.dxe4#
- 1...Qe7+
- 2.Sxe7#
- 1...Bxc2
- 2.Rh5#
- 1...exd3
- 2.e4#
- 1...Qh7
- 2.Qb3#
- 1...Re8
- 2.Rd6#
- 1...Bf3!
- threat
- 1.Rb4?
- threat
- 2.dxe4#
- 1...Qe7+
- 2.Sxe7#
- 1...Qxb4
- 2.Se7#
- 1...exd3
- 2.e4#
- 1...Re8
- 2.Rd6#
- 1...Bc2
- 2.Rh5#
- 1...Bf3
- 2.Qb3#
- 1...Qh7!
- threat
- 1.Qg2?
- threat
- 2.Qxe4#
- 2.Qg5#
- 1...Qe7+
- 2.Sxe7#
- 1...Qxc8
- 2.Qxe4#
- 1...Qc7
- 2.Qxe4#
- 1...Qd7
- 2.Qxe4#
- 1...Qf7
- 2.Qxe4#
- 1...Qg7
- 2.Qxe4#
- 1...Re8
- 2.Rd6#
- 1...Rf8
- 2.Rd6#
- 2.Qxe4#
- 1...Rg8
- 2.Rd6#
- 2.Qxe4#
- 1...Bf3
- 2.Qg5#
- 1...Bg4
- 2.Qxe4#
- 1...Sd7
- 2.Se7#
- 2.Rd6#
- 2.Qxe4#
- 1...Qh7!
- threat
- 1.Qxb7?
- threat
- 2.Se7#
- 2.Qf7#
- 1...Rxc8
- 2.Qf7#
- 1...exd3
- 2.Qf7#
- 1...Ra7
- 2.Sb6#
- 2.Se7#
- 1...Rd6
- 2.Se7#
- 2.Rxd6#
- 1...Re8
- 2.Rd6#
- 1...Rf8
- 2.Se7#
- 2.Rd6#
- 1...Bg4
- 2.Se7#
- 1...Bh5
- 2.Se7#
- 2.Rxh5#
- 1...Sd7
- 2.Se7#
- 2.Rd6#
- 1...Rd7!
- threat
- 1.Sxe4?
- Keys
- 1.Qb3!
- threat
- 2.dxe4#
- 1...Qe7+
- 2.Sxe7#
- 1...Qxb3
- 2.Se7#
- 1...Bxb3
- 2.Rh5#
- 1...exd3
- 2.e4#
- 1...Qh7
- 2.Rc2#
- 1...Re8
- 2.Rd6#
- 1...Bc2
- 2.Rh5#
- 1...Bf3
- 2.Rb4#
- threat
- 1.Qb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- Q(f);N_GUARD::S(I)
- Q(f);N_GUARD,XQ(A)::S(I)
- Q(f);CHECK,N_GUARD::S(I),XQ(f)
- R(h);N_GUARD::R1(H),XR(h)
- R(h);N_GUARD::R1(H)
- B(a);N_GUARD::R(H)
- B(a);N_GUARD::R(H),XB(a)
- Tries
- Try
- S(G);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::S(I),XQ(f)
- Q(f);::S(G)
- R(d);::R1(D)
- R(d);::S(G)
- Refutation
- Q(f);
- Try
- S(G);XQ(f)
- Threat
- DUALS(2)
- Vars
- R(h);::R1(D)
- Refutation
- P(b);XP(B)
- Try
- R(D);
- Threat
- P(B),XP(b)
- Vars
- Q(f);CHECK,N_GUARD::S(I),XQ(f)
- B(a);N_GUARD,XR(D)::R(H)
- P(b);OGATE,XP(B)::P(C)
- Q(f);N_GUARD,P_PINR(H)::QAB(A)
- R(h);N_GUARD::R1(H)
- Refutation
- B(a);
- Try
- R(D);
- Threat
- P(B),XP(b)
- Vars
- Q(f);CHECK,N_GUARD::S(I),XQ(f)
- Q(f);N_GUARD,XR(D)::S(I)
- P(b);OGATE,XP(B)::P(C)
- R(h);N_GUARD::R1(H)
- B(a);N_GUARD::R(H)
- B(a);N_GUARD::QAB(A)
- Refutation
- Q(f);P_PINR(H)
- Try
- Q(A);P_PINP(b)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::S(I),XQ(f)
- Q(f);XS(I)::QAB1(A),XP(b)
- Q(f);::QAB1(A),XP(b)
- R(h);N_GUARD::R1(H)
- B(a);N_SPINP(b)::QAR(A)
- B(a);::QAB1(A),XP(b)
- Refutation
- Q(f);P_PINR(H)
- Try
- Q(A);P_PINP(e),XQ(f)
- Threat
- DUALS(2)
- Vars
- R(h);XS(I)::QAB(A)
- P(b);XP(B)::QAB(A)
- R(h);N_GUARD::R1(H)
- B(a);::S(I)
- Refutation
- R(h);
- Try
- Actual
- Q(A);
- Threat
- P(B),XP(b)
- Vars
- Q(f);CHECK,N_GUARD::S(I),XQ(f)
- Q(f);N_GUARD,XQ(A)::S(I)
- B(a);N_GUARD,XQ(A)::R(H)
- P(b);OGATE,XP(B)::P(C)
- Q(f);N_GUARD,P_PINR(H)::QAB(A)+R(D)
- R(h);N_GUARD::R1(H)
- B(a);N_GUARD::R(H)
- B(a);N_GUARD::QAB(A)+R(D)
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).