MESON Chess Problem Database
Problem Display
PID: 246569 (5NNq/1r3p1P/1pp5/4kP2/7Q/1nKR3P/2P2RBb/1bB1r3 w - - 0 1)
Zajic, Helmut
The Problemist, 1989
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Qxf6#
- 1...Qxh7
- 2.Qf6#
- 1...Rxc1
- 2.Qe4#
- 1...Rd1
- 2.Qe4#
- 1...Rf1
- 2.Qe4#
- 1...Rg1
- 2.Qe4#
- 1...Rh1
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rd7
- 2.Sxd7#
- 1...Re7
- 2.Qxe7#
- 1...Rb8
- 2.Sd7#
- 2.Qe7#
- 1...Bg1
- 2.Qg3#
- 2.Qf4#
- 1...Bg3
- 2.Qxg3#
- 1...Bf4
- 2.Qxf4#
- 1...Sa1
- 2.Qd4#
- 1...Sxc1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...c5
- 2.Rd5#
- 1...f6
- 2.Sg6#
- 1...Qf6
- Tries
- 1.Bf4+?
- 1...Bxf4
- 2.Qxf4#
- 1...Kxf5+!
- 1...Bxf4
- 1.Bxc6?
- threat
- 2.Rd5#
- 1...Bf4
- 2.Qxf4#
- 1...Sd4
- 2.Qxd4#
- 1...Rd1
- 2.Qe4#
- 1...Rd7
- 2.Sxd7#
- 1...Re3!
- threat
- 1.Qd8?
- threat
- 2.Qd6#
- 1...Qf6
- 2.Qxf6#
- 1...Rd7
- 2.Sxd7#
- 1...Sd4
- 2.Qxd4#
- 1...Bf4!
- threat
- 1.Qb4?
- threat
- 2.Qd6#
- 1...Bf4
- 2.Qxf4#
- 1...Rd7
- 2.Sxd7#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...c5
- 2.Rd5#
- 1...Qf6!
- threat
- 1.Qh6?
- threat
- 2.Qd6#
- 1...Bf4
- 2.Qxf4#
- 1...Qf6
- 2.Qxf6#
- 1...Rd7
- 2.Sxd7#
- 1...f6
- 2.Sg6#
- 1...Sd4!
- threat
- 1.cxb3?
- threat
- 2.Qd4#
- 1...Bf4
- 2.Qxf4#
- 1...Re4
- 2.Qxe4#
- 1...Rd7
- 2.Sxd7#
- 1...c5
- 2.Rd5#
- 1...Rxc1+!
- threat
- 1.Bf4+?
- Keys
- 1.Ba3!
- threat
- 2.Bd6#
- 1...Bf4
- 2.Qxf4#
- 1...Qf6
- 2.Qxf6#
- 1...Rd7
- 2.Sxd7#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...c5
- 2.Rd5#
- threat
- 1.Ba3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 14
- Sets
- Q(j);N_GUARD::QAB1(H),XQ(j)
- Q(j);N_GUARD,XP(J)::QAB1(H)
- R(b);N_GUARD,P_PINP(B),XB(A)::QAR1(H)
- R(b);N_GUARD::QAR1(H)
- R(b);N_GUARD::QAR1(H),XR(b)
- R(h);N_GUARD::S(K),XR(h)
- R(h);N_GUARD::QAR2(H),XR(h)
- B(c);N_GUARD::QAB(H),XB(c)
- B(c);N_GUARD::QAB1(H),XB(c)
- S(d);N_GUARD::QAB1(H)
- S(d);N_GUARD,XB(A)::QAB1(H)
- S(d);N_GUARD::QAB1(H),XS(d)
- P(g);N_GUARD::R1(F)
- P(i);N_GUARD::S(K)
- Tries
- Try
- B(A);CHECK
- Vars
- B(c);OGATE,XB(A)::QAB1(H),XB(c)
- Refutation
- K(e);CHECK,P-FLIGHT,XP(I)
- Try
- B(D);XP(g)
- Threat
- R1(F)
- Vars
- B(c);N_GUARD::QAB1(H),XB(c)
- S(d);N_GUARD::QAB1(H),XS(d)
- R(b);N_GUARD::QAR1(H)
- R(h);N_GUARD::S(K),XR(h)
- Refutation
- R(b);P_PINR(F)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- Q(j);N_GUARD::QAB1(H),XQ(j)
- R(h);N_GUARD::S(K),XR(h)
- S(d);N_GUARD::QAB1(H),XS(d)
- Refutation
- B(c);
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- B(c);N_GUARD::QAB1(H),XB(c)
- R(h);N_GUARD::S(K),XR(h)
- S(d);N_GUARD::QAB1(H),XS(d)
- S(d);N_GUARD::QAB1(H)
- P(g);N_GUARD::R1(F)
- Refutation
- Q(j);
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- B(c);N_GUARD::QAB1(H),XB(c)
- Q(j);N_GUARD::QAB1(H),XQ(j)
- R(h);N_GUARD::S(K),XR(h)
- P(i);N_GUARD::S(K)
- Refutation
- S(d);
- Try
- P(B);XS(d)
- Threat
- QAB1(H)
- Vars
- B(c);N_GUARD::QAB1(H),XB(c)
- R(b);N_GUARD::QAR1(H),XR(b)
- R(h);N_GUARD::S(K),XR(h)
- P(g);N_GUARD::R1(F)
- Refutation
- R(b);CHECK,XB(A)
- Try
- Actual
- B(A);
- Threat
- B(A)
- Vars
- B(c);N_GUARD::QAB1(H),XB(c)
- Q(j);N_GUARD::QAB1(H),XQ(j)
- R(h);N_GUARD::S(K),XR(h)
- S(d);N_GUARD::QAB1(H),XS(d)
- S(d);N_GUARD::QAB1(H)
- P(g);N_GUARD::R1(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).