MESON Chess Problem Database
Problem Display
PID: 140455 (1K2R3/2Pp4/2N2ppn/1N3kP1/n1r1pB2/3rQ1PP/B1p5/q4R2 w - - 0 1)
Haring, Jacobus
3rd HM., BCF 131. Ty., 1972-1973
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Be5#
- 2.Bd6#
- 1...Qc3
- 2.Be5#
- 2.Bd6#
- 1...Qd4
- 2.Be5#
- 2.Bd6#
- 1...Qe5
- 2.Bxe5#
- 1...Qxa2
- 2.Be5#
- 2.Bd6#
- 1...Ra3
- 2.Sd6#
- 1...Rdc3
- 2.Sd6#
- 1...Rxe3
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Rcc3
- 2.Se7#
- 2.Qxe4#
- 1...Rb4
- 2.Se7#
- 1...Rd4
- 2.Se7#
- 1...Rc5
- 2.Se7#
- 2.Qxe4#
- 1...Rxc6
- 2.Qxe4#
- 1...Sf7
- 2.g4#
- 1...Sg8
- 2.g4#
- 1...c1S
- 2.Be5#
- 2.Bd6#
- 1...c1B
- 2.Be5#
- 2.Bd6#
- 1...d5
- 2.Sd6#
- 2.c8Q#
- 2.c8B#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...Qb2
- Tries
- 1.Sbd4+?
- 1...Qxd4
- 2.Be5#
- 2.Bd6#
- 1...Rcxd4
- 2.Se7#
- 1...Rdxd4!
- 1...Qxd4
- 1.Bxc4?
- threat
- 2.Se7#
- 2.Qxe4#
- 1...Rxe3
- 2.Sd6#
- 2.Se7#
- 1...dxc6
- 2.Be6#
- 2.Qxe4#
- 1...Qd4
- 2.Se7#
- 2.Be5#
- 2.Bd6#
- 1...Qe5
- 2.Bxe5#
- 1...Qe1
- 2.Se7#
- 1...Qa3
- 2.Be5#
- 2.Bd6#
- 2.Qxe4#
- 1...Rd4
- 2.Se7#
- 1...Rd5
- 2.Qxe4#
- 1...Sc3
- 2.Se7#
- 1...Sc5
- 2.Se7#
- 1...Sg8
- 2.Qxe4#
- 2.g4#
- 1...d5
- 2.Sd6#
- 2.c8Q#
- 2.c8B#
- 1...fxg5!
- threat
- 1.Qc5+?
- 1...Qe5
- 2.Be3#
- 1...Rd5
- 2.Sd6#
- 2.Bc1#
- 1...Rxc5
- 2.Se7#
- 1...d5
- 2.Sd6#
- 2.c8Q#
- 2.c8B#
- 1...Sxc5!
- 1...Qe5
- 1.Qxd3?
- threat
- 2.Sd6#
- 2.Bc1#
- 2.Qxd7#
- 1...Qxf1
- 2.Sd6#
- 2.Qd5#
- 2.Qxd7#
- 1...Rxc6
- 2.Bc1#
- 2.Qxe4#
- 1...exd3
- 2.Sd6#
- 1...fxg5
- 2.Bc1#
- 1...dxc6
- 2.Sd6#
- 2.Bc1#
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...c1Q
- 2.Sd6#
- 2.Bxc1#
- 2.Qxd7#
- 1...c1S
- 2.Sd6#
- 2.Bxc1#
- 2.Bd2#
- 2.Be3#
- 2.Qxd7#
- 1...c1B
- 2.Sd6#
- 2.Bxc1#
- 2.Bd2#
- 2.Be3#
- 2.Qxd7#
- 1...c1R
- 2.Sd6#
- 2.Bxc1#
- 2.Qxd7#
- 1...Qb2
- 2.Bc1#
- 2.Bd2#
- 2.Be3#
- 2.Qxd7#
- 1...Qd4
- 2.Be3#
- 1...Qb1
- 2.Bc1#
- 2.Qd5#
- 2.Qxd7#
- 1...Qc1
- 2.Sd6#
- 2.Bxc1#
- 2.Qd5#
- 2.Qxd7#
- 1...Qd1
- 2.Sd6#
- 1...Qe1
- 2.Sd6#
- 2.Qd5#
- 2.Qxd7#
- 1...Rb4
- 2.Se7#
- 2.Bc1#
- 2.Qxd7#
- 1...Rd4
- 2.Se7#
- 2.Bc1#
- 1...Sc5
- 2.Sd6#
- 2.Bc1#
- 1...Sb6
- 2.Sd6#
- 2.Bc1#
- 1...Sg4
- 2.Sd6#
- 2.Qxd7#
- 1...Sf7
- 2.Bc1#
- 2.Qxd7#
- 2.g4#
- 1...d5
- 2.Sd6#
- 2.Bc1#
- 2.c8Q#
- 2.c8B#
- 1...d6
- 2.Sxd6#
- 2.Bc1#
- 2.c8Q#
- 2.c8B#
- 1...Qe5!
- threat
- 1.Sbd4+?
- Keys
- 1.Qd4!
- threat
- 2.Sd6#
- 1...Qxd4
- 2.Be3#
- 1...Rdxd4
- 2.Bc1#
- 1...Rcxd4
- 2.Se7#
- 1...Rxc6
- 2.Qxe4#
- 1...Qb2
- 2.Be3#
- 1...Qb1
- 2.Qxf6#
- 1...Rb3
- 2.Qxd7#
- 1...Rb4
- 2.Se7#
- 1...Sf7
- 2.g4#
- 1...d6
- 2.Sxd6#
- 2.c8Q#
- 2.c8B#
- threat
- 1.Qd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- Q(a);N_GUARD,P_PINP(J)::R(A)+B(F),XQ(a)
- R(c);N_GUARD::S(G)
- R(c);N_GUARD,XQ(C)::S(G)
- R(c);N_GUARD::S(G),XR(c)
- R(e);P_PINS(G)::S(I)
- R(e);::S(I)
- R(e);N_GUARD,XS(I)::QAB1(C),XP(f)
- S(j);N_GUARD::P(D)
- P(k);::P=Q
- Tries
- Try
- S(G);CHECK
- Vars
- R(e);XS(G)::S(I)
- Refutation
- R(c);XS(G)
- Try
- B(B);XR(e)
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,P_PINP(J)::R(A)+B(F),XQ(a)
- Q(a);::S(I)
- R(c);::S(I)
- R(c);::QAB1(C),XP(f)
- S(d);::S(I)
- Refutation
- P(h);XP(H)
- Try
- Q(C);CHECK
- Vars
- Q(a);P_PINP(J),P_SPINQ(a)::R(A)+B(F)
- R(e);XQ(C)::S(I)
- Refutation
- S(d);XQ(C)
- Try
- Q(C);P_PINP(f),XR(c)
- Threat
- DUALS(3)
- Vars
- P(f);N_SPINP(f),XQ(C)::S(G)
- P(h);XP(H)::R(A)+B(F)
- Q(a);N_GUARD::R(A)+B(F)
- Q(a);::S(G)
- Refutation
- Q(a);P_PINP(J)
- Try
- Actual
- Q(C);
- Threat
- S(G)
- Vars
- Q(a);N_GUARD,XQ(C)::R(A)+B(F)
- R(c);N_GUARD,XQ(C)::R(A)+B(F)
- R(e);XQ(C)::S(I)
- R(e);N_GUARD,XS(I)::QAB1(C),XP(f)
- Q(a);N_GUARD,P_PINS(G)::R(A)+B(F)
- Q(a);N_GUARD,P_PINS(G)::QAR1(C),XP(h)
- R(c);N_GUARD,P_PINS(G)::QAB(C),XP(k)
- R(e);P_PINS(G)::S(I)
- S(j);N_GUARD::P(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).