MESON Chess Problem Database
Problem Display
PID: 27911 (2K1nn1r/p4Q2/2N1p3/1p1pp2q/1Pk1N3/2pR4/1RPb4/r7 w - - 0 1)
Dombrovskis, Alfreds A
2nd Place, 64 Shakhmatnoe obozrenie, 1974
#2
8 + 13
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sxe5#
- 1...Qe2
- 2.Sxe5#
- 1...Qf3
- 2.Sxe5#
- 1...Qg4
- 2.Sxe5#
- 1...Qg6
- 2.Sxe5#
- 1...Qxf7
- 2.Sxe5#
- 1...Qh1
- 2.Sxe5#
- 1...Qh3
- 2.Sxe5#
- 1...Qh4
- 2.Sxe5#
- 1...Qh6
- 2.Sxe5#
- 1...Qh7
- 2.Sxe5#
- 1...Rb1
- 2.Sa5#
- 1...Rc1
- 2.Sa5#
- 1...Rd1
- 2.Sa5#
- 1...Re1
- 2.Sa5#
- 1...Rf1
- 2.Sa5#
- 1...Rg1
- 2.Sa5#
- 1...Rh1
- 2.Sa5#
- 1...Ra5
- 2.Sxa5#
- 1...Bc1
- 2.Rxc3#
- 1...Be3
- 2.Rxc3#
- 1...Bf4
- 2.Rxc3#
- 1...Bg5
- 2.Sxe5#
- 2.Rxc3#
- 1...Bh6
- 2.Rxc3#
- 1...Sd6+
- 2.Sxd6#
- 1...Sf6
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg7
- 2.Sd6#
- 1...cxb2
- 2.Sxd2#
- 1...Qd1
- Tries
- 1.Qf4?
- threat
- 2.Sxd2#
- 2.Sd6#
- 1...Sd6+
- 2.Sxd6#
- 1...Bxf4
- 2.Rxc3#
- 1...dxe4
- 2.Qxe4#
- 1...exf4
- 2.Rd4#
- 1...Bc1
- 2.Sd2#
- 2.Sd6#
- 2.Rxc3#
- 1...Be1
- 2.Sd2#
- 2.Sd6#
- 1...Be3
- 2.Sd2#
- 2.Sd6#
- 2.Rxc3#
- 1...d4!
- threat
- 1.Qc7?
- threat
- 2.Sa5#
- 2.Sxe5#
- 1...Sd6+
- 2.Sxd6#
- 1...Sxc7
- 2.Sd6#
- 1...cxb2
- 2.Sxd2#
- 1...Ra5
- 2.Sxa5#
- 2.Sxe5#
- 1...a5
- 2.Sxa5#
- 2.Sxe5#
- 1...d4!
- threat
- 1.Qe7?
- threat
- 2.Qc5#
- 1...Sd6+
- 2.Sxd6#
- 1...Be3
- 2.Rxc3#
- 1...Sd7!
- threat
- 1.Qxf8?
- threat
- 2.Qc5#
- 1...Sd6+
- 2.Sxd6#
- 1...Be3
- 2.Rxc3#
- 1...Sf6
- 2.Sd6#
- 1...Sc7
- 2.Sd6#
- 1...Sg7
- 2.Sd6#
- 1...Rxf8!
- threat
- 1.Qf4?
- Keys
- 1.Qf1!
- threat
- 2.Rxc3#
- 2.Rd4#
- 1...Sd6+
- 2.Sxd6#
- 1...Rxf1
- 2.Sa5#
- 1...cxb2
- 2.Sxd2#
- 2.Rc3#
- 2.Rd4#
- 1...dxe4
- 2.Rd4#
- 1...d4
- 2.Rxd4#
- 1...Qe2
- 2.Sxe5#
- threat
- 1.Qf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 25
- Sets
- Q(h);N_GUARD::S(F),XP(g)
- Q(h);N_GUARD,XQ(G)::S(F),XP(g)
- R(a);N_GUARD::S(F)
- R(a);N_GUARD::S(F),XR(a)
- B(b);N_GUARD::R1(C),XP(c)
- S(k);CHECK,N_GUARD::S(E),XS(k)
- S(k);N_GUARD::S(E)
- P(c);N_GUARD,XR(A)::S(E),XB(b)
- Tries
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- S(k);CHECK::QAR(G)+S(E),DCHECK,XS(k)
- B(b);N_GUARD,XQ(G)::R1(C),XP(c)
- P(f);OGATE,P_SPINP(f),XS(E)::QAR2(G),XP(f)
- P(g);N_GUARD,XQ(G)::R1(C)
- Refutation
- P(f);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- S(k);CHECK,N_GUARD::S(E),XS(k)
- S(k);N_GUARD,XQ(G)::S(E)
- P(c);N_GUARD,XR(A)::S(E),XB(b)
- Refutation
- P(f);
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(k);CHECK,N_GUARD::S(E),XS(k)
- B(b);N_GUARD::R1(C),XP(c)
- Refutation
- S(l);
- Try
- Q(G);XS(l)
- Threat
- QAR1(G)
- Vars
- S(k);CHECK,N_GUARD,P_PINQ(G)::S(E),XS(k)
- B(b);N_GUARD::R1(C),XP(c)
- S(k);N_GUARD,P_PINQ(G)::S(E)
- Refutation
- R(m);XQ(G)
- Try
- Actual
- Q(G);
- Threat
- DUALS(2)
- Vars
- S(k);CHECK,N_GUARD::S(E),XS(k)
- R(a);N_GUARD,XQ(G)::S(F)
- P(f);XS(E)::QAB(G)+R(C),DCHECK
- P(f);::QAB(G)+R(C),DCHECK,XP(f)
- Q(h);N_GUARD::S(F),XP(g)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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