MESON Chess Problem Database
Problem Display
PID: 99701 (3N4/2N1KR2/4p3/2p1k2p/1rR2pr1/3P1q2/6QB/3b4 w - - 0 1)
Haring, Jacobus
Magyar Sakkelet, 1974
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.Sc6#
- 1...Qe4
- 2.Qxe4#
- 1...Qc6
- 2.Sxc6#
- 1...Qf1
- 2.Sc6#
- 2.Qe4#
- 1...Qf2
- 2.Sc6#
- 2.Qe4#
- 1...Qxd3
- 2.Sc6#
- 1...Qe3
- 2.Sc6#
- 1...Qg3
- 2.Sc6#
- 2.Qe4#
- 1...Qh3
- 2.Sc6#
- 2.Qe4#
- 1...Rb2
- 2.Qxb2#
- 1...Ra4
- 2.Qb2#
- 1...Rh4
- 2.Qg5#
- 2.Qg7#
- 1...Rg5
- 2.Qxg5#
- 1...Rg7
- 2.Qxg7#
- 1...Bb3
- 2.Qb2#
- 1...Qe2
- Tries
- 1.Bxf4+?
- 1...Qxf4
- 2.Sc6#
- 1...Rxf4!
- 1...Qxf4
- 1.Re4+?
- 1...Rxe4
- 2.Sc6#
- 1...Qxe4!
- 1...Rxe4
- 1.Rcxf4?
- threat
- 2.Re4#
- 1...Qxf4
- 2.Sc6#
- 1...Rbxf4
- 2.Qb2#
- 1...Rgxf4
- 2.Qg7#
- 1...Qe4
- 2.Rxe4#
- 1...Re4
- 2.Sc6#
- 2.Rxe4#
- 1...Qg3
- 2.Sc6#
- 1...Rg3!
- threat
- 1.Rxc5+?
- 1...Qd5
- 2.Sc6#
- 1...Kd4!
- 1...Qd5
- 1.Rf5+?
- 1...exf5
- 2.Sf7#
- 1...Kxf5!
- 1...exf5
- 1.Qxf3?
- threat
- 2.Sc6#
- 2.Qe4#
- 2.Qe3#
- 1...Rxc4
- 2.Sc6#
- 1...Rb6
- 2.Re4#
- 2.Qe4#
- 2.Qe3#
- 1...Rg3
- 2.Sc6#
- 2.Qe4#
- 2.Qxf4#
- 1...Ba4
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Bxf3!
- threat
- 1.Qe2+?
- 1...Qxe2
- 2.Sc6#
- 1...Qe4
- 2.Sc6#
- 2.Qxe4#
- 1...Qe3
- 2.Sc6#
- 2.Qxe3#
- 1...Bxe2!
- 1...Qxe2
- 1.Qxg4?
- threat
- 2.Qxe6#
- 2.Qg5#
- 2.Qg7#
- 1...Qxg4
- 2.Sc6#
- 1...Qxd3
- 2.Sc6#
- 2.Bxf4#
- 2.Qxe6#
- 2.Qxf4#
- 2.Qg7#
- 1...Rxc4
- 2.Qg7#
- 1...Qg2
- 2.Bxf4#
- 2.Qxe6#
- 2.Qxf4#
- 1...Qe4
- 2.Qxe6#
- 2.Qg7#
- 1...Qd5
- 2.Bxf4#
- 2.Qxf4#
- 2.Qg5#
- 2.Qg7#
- 1...Qc6
- 2.Sxc6#
- 2.Bxf4#
- 2.Qxf4#
- 2.Qg5#
- 2.Qg7#
- 1...Qg3
- 2.Sc6#
- 2.Qxe6#
- 1...Qh3
- 2.Sc6#
- 2.Bxf4#
- 2.Qxf4#
- 2.Qg7#
- 1...Rb6
- 2.Qg5#
- 2.Qg7#
- 1...hxg4!
- threat
- 1.Bxf4+?
- Keys
- 1.Rfxf4!
- threat
- 2.Sf7#
- 1...Rg7+
- 2.Qxg7#
- 1...Qxf4
- 2.Qe4#
- 1...Rxf4
- 2.Qg5#
- threat
- 1.Rfxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(b);N_GUARD::S(H)
- Q(b);OGATE::QAR1(A),XQ(b)
- Q(b);N_GUARD::S(H),XQ(b)
- Q(b);N_GUARD,XP(C)::S(H)
- R(c);N_GUARD::QAB(A),XR(c)
- R(c);N_GUARD::QAB(A)
- R(e);OGATE::QAR2(A),XR(e)
- R(e);OGATE,P_PINR(G)::QAB(A),XR(e)
- B(a);S_CUTR(c)::QAB(A)
- Tries
- Try
- B(B);CHECK,XP(d)
- Vars
- Q(b);XB(B)::S(H)
- Refutation
- R(e);XB(B)
- Try
- R(D);CHECK
- Vars
- R(c);XR(D)::S(H)
- Refutation
- Q(b);XR(D)
- Try
- R(D);XP(d)
- Threat
- B(B)+R(D),DCHECK
- Vars
- Q(b);N_GUARD,P_SPINQ(b),XR(D)::S(H)
- R(c);N_GUARD,P_SPINR(c),XR(D)::QAB(A)
- R(e);OGATE,P_SPINR(e),XR(D)::QAB(A)
- Q(b);::B(B)+R(D),DCHECK,XQ(b)
- Q(b);N_GUARD::S(H)
- Refutation
- R(e);
- Try
- R(D);CHECK,XP(f)
- Vars
- Q(b);P_SPINQ(b)::S(H)
- Refutation
- K(g);N_SPINP(d),S_FLIGHT
- Try
- R(G);CHECK
- Vars
- P(i);SBLOCK,XR(G)::S(H)
- Refutation
- K(g);N_SPINP(d),P-FLIGHT,XR(G)
- Try
- Q(A);XQ(b)
- Threat
- DUALS(3)
- Vars
- R(c);XR(D)::S(H)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);CHECK
- Vars
- Q(b);XQ(A)::S(H)
- Refutation
- B(a);XQ(A)
- Try
- Q(A);XR(e)
- Threat
- DUALS(3)
- Vars
- Q(b);N_GUARD,XQ(A)::S(H)
- R(c);XR(D)::QAB(A)
- Refutation
- P(h);XQ(A)
- Try
- Actual
- R(G);XP(d)
- Threat
- S(H)
- Vars
- R(e);CHECK,OGATE::QAB(A),XR(e)
- Q(b);OGATE,P_SPINQ(b),XR(G)::QAR1(A)
- R(e);OGATE,P_SPINR(e),XR(G)::QAR2(A)
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).