MESON Chess Problem Database
Problem Display
PID: 60999 (2K1BR2/P2P4/8/1R2N3/4kp2/2B1pp1r/2N2P2/r3Q1q1 w - - 0 1)
Visserman, Eeltje
1st Comm., Schakend Nederland, 1971
#2
11 + 7
| 3753 | FIDE Album (1971-1973) | 1978 |
| 6352 | A Collection of Chess Problems by Touw Hian Bwee | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Bg6#
- 1...Qh2
- 2.Bg6#
- 1...Qxe1
- 2.Bg6#
- 1...Qf1
- 2.Bg6#
- 1...Qh1
- 2.Bg6#
- 1...Qg6
- 2.Bxg6#
- 1...Rb1
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.a8Q#
- 2.a8B#
- 1...Rxe1
- 2.a8Q#
- 2.a8B#
- 1...Qxf2
- Tries
- 1.Sxa1?
- threat
- 2.a8Q#
- 2.a8B#
- 1...Qxf2
- 2.Bg6#
- 2.a8Q#
- 2.a8B#
- 1...Qxe1
- 2.Bg6#
- 2.a8Q#
- 2.a8B#
- 1...Qg2
- 2.Qb1#
- 2.a8Q#
- 2.a8B#
- 1...Qh2
- 2.Bg6#
- 2.Qb1#
- 2.a8Q#
- 2.a8B#
- 1...Qf1
- 2.Bg6#
- 2.a8Q#
- 2.a8B#
- 1...Qh1
- 2.Bg6#
- 2.a8Q#
- 2.a8B#
- 1...Qg3
- 2.Qb1#
- 2.a8Q#
- 2.a8B#
- 1...Qg4
- 2.Qb1#
- 2.a8Q#
- 2.a8B#
- 1...Qg5
- 2.Qb1#
- 2.a8Q#
- 2.a8B#
- 1...Qg6
- 2.Bxg6#
- 2.Qb1#
- 1...Qg7
- 2.Qb1#
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.Qb1#
- 1...Rh1
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.a8Q#
- 2.a8B#
- 1...Rg3
- 2.a8Q#
- 2.a8B#
- 1...Rh4
- 2.a8Q#
- 2.a8B#
- 1...Rh5
- 2.a8Q#
- 2.a8B#
- 1...Rh7
- 2.a8Q#
- 2.a8B#
- 1...Rh8
- 2.a8Q#
- 2.a8B#
- 1...e2
- 2.a8Q#
- 2.a8B#
- 1...Rh6!
- threat
- 1.Sxe3?
- threat
- 2.Rb4#
- 1...fxe3
- 2.Qxe3#
- 1...Qf1
- 2.Bg6#
- 1...Qg8
- 2.Sd1#
- 1...Rb1
- 2.a8Q#
- 2.a8B#
- 1...Ra4
- 2.Sf1#
- 1...Rd1!
- threat
- 1.Bxa1?
- threat
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qxf2
- 2.Bg6#
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qxe1
- 2.Bg6#
- 2.a8Q#
- 2.a8B#
- 1...Qg2
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qh2
- 2.Bg6#
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qf1
- 2.Bg6#
- 2.a8Q#
- 2.a8B#
- 1...Qh1
- 2.Bg6#
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qg3
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qg4
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qg5
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qg6
- 2.Bxg6#
- 2.Qb4#
- 1...Qg7
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Rg3
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Rh4
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Rh5
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Rh6
- 2.Qb4#
- 1...Rh7
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Rh8
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...e2
- 2.Qb4#
- 2.a8Q#
- 2.a8B#
- 1...Qg8!
- threat
- 1.Qd2?
- threat
- 2.Rb4#
- 2.Qd3#
- 2.Qd4#
- 2.Qd5#
- 1...Qb1
- 2.Bg6#
- 2.Qd3#
- 2.Qd4#
- 2.Qd5#
- 1...Qd1
- 2.Bg6#
- 2.Rb4#
- 1...Qf1
- 2.Bg6#
- 2.Qd4#
- 2.Qd5#
- 1...Qg8
- 2.Qd3#
- 2.Qd4#
- 1...Rb1
- 2.Qd3#
- 2.Qd4#
- 2.Qd5#
- 2.a8Q#
- 2.a8B#
- 1...Rd1
- 2.Rb4#
- 2.a8Q#
- 2.a8B#
- 1...Ra4
- 2.Qd3#
- 2.Qd5#
- 1...exd2!
- threat
- 1.Qxa1?
- threat
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qxf2
- 2.Bg6#
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qxa1
- 2.Bg6#
- 1...exf2
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qg2
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qh2
- 2.Bg6#
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qb1
- 2.Bg6#
- 2.a8Q#
- 2.a8B#
- 1...Qc1
- 2.Bg6#
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qd1
- 2.Bg6#
- 1...Qe1
- 2.Bg6#
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qf1
- 2.Bg6#
- 2.a8Q#
- 2.a8B#
- 1...Qh1
- 2.Bg6#
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qg3
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qg4
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qg5
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qg6
- 2.Bxg6#
- 2.Qa4#
- 1...Qg7
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Rg3
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Rh4
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Rh5
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Rh6
- 2.Qa4#
- 1...Rh7
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Rh8
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...e2
- 2.Qa4#
- 2.a8Q#
- 2.a8B#
- 1...Qg8!
- threat
- 1.Qd1?
- threat
- 2.Rb4#
- 2.Qd3#
- 2.Qd4#
- 2.Qd5#
- 1...Qxd1
- 2.Bg6#
- 1...Qf1
- 2.Bg6#
- 2.Qd4#
- 2.Qd5#
- 1...Qg8
- 2.Qd3#
- 2.Qd4#
- 1...Rb1
- 2.Qd3#
- 2.Qd4#
- 2.Qd5#
- 2.a8Q#
- 2.a8B#
- 1...Ra4
- 2.Qd3#
- 2.Qd5#
- 1...Rxd1!
- threat
- 1.Sxa1?
- Keys
- 1.Qb1!
- threat
- 2.Qb4#
- 1...Qxb1
- 2.Bg6#
- 1...Rxb1
- 2.a8Q#
- 2.a8B#
- 1...Qd1
- 2.Bg6#
- 1...Qf1
- 2.Bg6#
- 1...Qg8
- 2.Sxa1#
- 1...Ra4
- 2.Se1#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- Q(b);N_GUARD,XP(C)::B(J)
- Q(b);N_GUARD::B(J)
- Q(b);N_GUARD,N_SPINP(c),XQ(A)::B(J)
- Q(b);N_GUARD::B(J),XQ(b)
- R(a);N_GUARD::P=Q
- R(a);N_GUARD,N_SPINP(c),XQ(A)::P=Q
- Tries
- Try
- S(B);XR(a)
- Threat
- P=Q
- Vars
- Q(b);N_GUARD::QAB(A)
- R(e);::P=Q
- P(c);::P=Q
- Refutation
- R(e);
- Try
- S(B);XP(c)
- Threat
- R(E)
- Vars
- P(g);OGATE,P_SPINP(g),XS(B)::QAR1(A),XP(g)
- Q(b);N_GUARD::B(J)
- Q(b);N_GUARD::QAR(A)+S(B)
- R(a);N_GUARD::P=Q
- R(a);N_GUARD::QAR(A)+S(B)
- Refutation
- R(a);
- Try
- B(D);XR(a)
- Threat
- DUALS(3)
- Vars
- R(e);::QAR(A)
- Refutation
- Q(b);
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(4)
- Refutation
- P(c);XQ(A)
- Try
- Q(A);N_PINP(c),XR(a)
- Threat
- DUALS(3)
- Vars
- Q(b);N_GUARD,XQ(A)::B(J)
- Q(b);N_GUARD::B(J)
- R(e);::QAR(A)
- Refutation
- Q(b);
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(4)
- Vars
- Q(b);N_GUARD,XQ(A)::B(J)
- Refutation
- R(a);XQ(A)
- Try
- Actual
- Q(A);N_PINP(c)
- Threat
- QAR(A)
- Vars
- Q(b);N_GUARD,XQ(A)::B(J)
- R(a);N_GUARD,XQ(A)::P=Q
- Q(b);N_GUARD::B(J)
- Q(b);N_GUARD::QAB(A)+S(B),XR(a)
- R(a);N_GUARD::QAB(A)+S(B)
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).