MESON Chess Problem Database
Problem Display
PID: 140192 (6kr/P1p4p/7P/3b4/2R1p3/pB1rP3/q2Q4/5R1K w - - 0 1)
Hartong, Jan
Probleemblad, 1975
#2
8 + 9
| 102 | Probleemblad | 1976 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qg2#
- 1...Qxb3
- 2.Qg2#
- 1...Rxb3
- 2.Qxd5#
- 1...Rc3
- 2.Qxd5#
- 1...Rxe3
- 2.Qxd5#
- 1...c6
- 2.a8Q#
- 2.a8R#
- 1...Qb1
- Tries
- 1.Rc2?
- threat
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qxb3
- 2.Qg2#
- 1...Qxc2
- 2.a8Q#
- 2.a8R#
- 1...Rxd2
- 2.a8Q#
- 2.a8R#
- 1...Rxb3
- 2.Qg2#
- 2.Qxd5#
- 1...Rxe3
- 2.Qxd5#
- 2.a8Q#
- 2.a8R#
- 1...Bxb3
- 2.Qg2#
- 1...Qb1
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qa1
- 2.a8Q#
- 2.a8R#
- 1...Qb2
- 2.a8Q#
- 2.a8R#
- 1...Rc3
- 2.Qg2#
- 2.Qxd5#
- 2.a8Q#
- 2.a8R#
- 1...Rd4
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Bc4
- 2.Qg2#
- 1...Be6
- 2.Qg2#
- 1...c5
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...c6
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Bf7!
- threat
- 1.Rd4?
- threat
- 2.a8Q#
- 2.a8R#
- 1...Qxb3
- 2.Qg2#
- 1...Qxd2
- 2.Bxd5#
- 2.a8Q#
- 2.a8R#
- 1...Rxd2
- 2.a8Q#
- 2.a8R#
- 1...Rxe3
- 2.a8Q#
- 2.a8R#
- 1...Rxd4
- 2.a8Q#
- 2.a8R#
- 1...Bxb3
- 2.a8Q#
- 2.a8R#
- 1...Bf7
- 2.a8Q#
- 2.a8R#
- 1...Qb1
- 2.Bxd5#
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qa1
- 2.Bxd5#
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qb2
- 2.Bxd5#
- 2.a8Q#
- 2.a8R#
- 1...Qc2
- 2.Bxd5#
- 2.a8Q#
- 2.a8R#
- 1...Rc3
- 2.a8Q#
- 2.a8R#
- 1...Bc4
- 2.a8Q#
- 2.a8R#
- 1...Be6
- 2.a8Q#
- 2.a8R#
- 1...c5
- 2.a8Q#
- 2.a8R#
- 1...c6
- 2.a8Q#
- 2.a8R#
- 1...Rxb3!
- threat
- 1.Rc5?
- threat
- 2.a8Q#
- 2.a8R#
- 1...Qxb3
- 2.Qg2#
- 1...Qxd2
- 2.a8Q#
- 2.a8R#
- 1...Rxd2
- 2.a8Q#
- 2.a8R#
- 1...Rxb3
- 2.Qxd5#
- 1...Rxe3
- 2.Qxd5#
- 2.a8Q#
- 2.a8R#
- 1...Bxb3
- 2.Rg5#
- 1...Qb1
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qa1
- 2.a8Q#
- 2.a8R#
- 1...Qb2
- 2.a8Q#
- 2.a8R#
- 1...Qc2
- 2.a8Q#
- 2.a8R#
- 1...Rc3
- 2.Qxd5#
- 2.a8Q#
- 2.a8R#
- 1...Rd4
- 2.a8Q#
- 2.a8R#
- 1...Bc4
- 2.Rg5#
- 1...Be6
- 2.Rg5#
- 1...c6
- 2.a8Q#
- 2.a8R#
- 1...Bf7!
- threat
- 1.Rxc7?
- threat
- 2.Rg7#
- 2.Rc8#
- 2.a8Q#
- 2.a8R#
- 1...Qxb3
- 2.Rg7#
- 2.Rc8#
- 2.Qg2#
- 1...Qxd2
- 2.Rg7#
- 2.Rc8#
- 2.a8Q#
- 2.a8R#
- 1...Rxd2
- 2.Rg7#
- 2.Rc8#
- 2.a8Q#
- 2.a8R#
- 1...Rxb3
- 2.Rg7#
- 2.Rc8#
- 2.Qxd5#
- 1...Rxe3
- 2.Rg7#
- 2.Rc8#
- 2.Qxd5#
- 2.a8Q#
- 2.a8R#
- 1...Bxb3
- 2.Rg7#
- 1...Qb1
- 2.Rg7#
- 2.Rc8#
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qa1
- 2.Rc8#
- 2.a8Q#
- 2.a8R#
- 1...Qb2
- 2.Rc8#
- 2.a8Q#
- 2.a8R#
- 1...Qc2
- 2.Rg7#
- 2.a8Q#
- 2.a8R#
- 1...Rc3
- 2.Rg7#
- 2.Qxd5#
- 2.a8Q#
- 2.a8R#
- 1...Rd4
- 2.Rg7#
- 2.Rc8#
- 2.a8Q#
- 2.a8R#
- 1...Bc4
- 2.Rg7#
- 1...Be6
- 2.Rg7#
- 1...Bf7!
- threat
- 1.Qf2?
- threat
- 2.Rg1#
- 2.Qg3#
- 2.Qf8#
- 1...Rxe3
- 2.Qf8#
- 1...Bf7
- 2.Qxf7#
- 1...Qb1
- 2.Qg1#
- 2.Qg3#
- 2.Qg2#
- 2.Qf8#
- 1...Qa1
- 2.Qf8#
- 1...Qb2
- 2.Qf8#
- 1...Qe2
- 2.Qf8#
- 1...Rd1
- 2.Qg3#
- 2.Qf8#
- 1...Be6
- 2.Qf8#
- 1...Qxf2!
- threat
- 1.Rc2?
- Keys
- 1.Rxe4!
- threat
- 2.a8Q#
- 2.a8R#
- 1...Qxb3
- 2.Qg2#
- 1...Qxd2
- 2.a8Q#
- 2.a8R#
- 1...Rxd2
- 2.a8Q#
- 2.a8R#
- 1...Rxb3
- 2.Qxd5#
- 1...Rxe3
- 2.Qxd5#
- 2.a8Q#
- 2.a8R#
- 1...Bxb3
- 2.Rg4#
- 2.Re8#
- 1...Bf7
- 2.Re8#
- 1...Qb1
- 2.Qg2#
- 2.a8Q#
- 2.a8R#
- 1...Qa1
- 2.a8Q#
- 2.a8R#
- 1...Qb2
- 2.a8Q#
- 2.a8R#
- 1...Qc2
- 2.a8Q#
- 2.a8R#
- 1...Rc3
- 2.Qxd5#
- 2.a8Q#
- 2.a8R#
- 1...Rd4
- 2.a8Q#
- 2.a8R#
- 1...Bc4
- 2.Rg4#
- 2.Re8#
- 1...Be6
- 2.Rg4#
- 1...c5
- 2.a8Q#
- 2.a8R#
- 1...c6
- 2.a8Q#
- 2.a8R#
- threat
- 1.Rxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- Q(a);N_GUARD,P_PINR(A)::QAR(C)
- Q(a);N_GUARD,XB(D)::QAR(C)
- R(c);OGATE,XB(D)::QAB(C),XB(e)
- R(c);OGATE::QAB(C),XB(e)
- R(c);OGATE,XP(E)::QAB(C),XB(e)
- P(f);S_CUTB(e)::P=Q
- Tries
- Try
- R(F);P_PINB(e)
- Threat
- DUALS(3)
- Vars
- Q(a);N_SPINB(e),XB(D)::QAR(C)
- Q(a);XR(F)::P=Q
- R(c);XQ(C)::P=Q
- B(e);N_SPINB(e),XB(D)::QAR(C)
- Q(a);P_PINR(A)::P=Q
- Q(a);::P=Q
- B(e);::QAR(C)
- Refutation
- B(e);
- Try
- R(F);P_PINB(e)
- Threat
- P=Q
- Vars
- Q(a);N_GUARD,N_SPINB(e),XB(D)::QAR(C)
- R(c);XQ(C)::P=Q
- R(c);XP(E)::P=Q
- R(c);XR(F)::P=Q
- B(e);N_SPINB(e),XB(D)::P=Q
- B(e);::P=Q
- R(c);::P=Q
- P(f);::P=Q
- Refutation
- R(c);N_SPINB(e),XB(D)
- Try
- R(F);P_PINB(e)
- Threat
- P=Q
- Vars
- Q(a);N_GUARD,N_SPINB(e),XB(D)::QAR(C)
- Q(a);XQ(C)::P=Q
- R(c);XQ(C)::P=Q
- R(c);N_SPINB(e),OGATE,XB(D)::QAB(C),XB(e)
- B(e);N_SPINB(e),OGATE,XB(D)::R(F)
- Q(a);P_PINR(A)::P=Q
- Q(a);::P=Q
- R(c);::P=Q
- B(e);OGATE::R(F)
- P(f);::P=Q
- Refutation
- B(e);
- Try
- R(F);P_PINB(e),XP(f)
- Threat
- DUALS(4)
- Vars
- B(e);N_SPINB(e),XB(D)::R1(F)
- B(e);::R1(F)
- Refutation
- B(e);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(c);XP(E)::QAR1(C)
- B(e);N_GUARD::QAB1(C),XB(e)
- Q(a);P_PINR(A)::QAR1(C)
- Q(a);::QAR1(C)
- B(e);::QAR1(C)
- Refutation
- Q(a);XQ(C)
- Try
- Actual
- R(F);P_PINB(e),P_SPINR(F),XP(d)
- Threat
- P=Q
- Vars
- Q(a);N_GUARD,N_SPINB(e),XB(D)::QAR(C)
- Q(a);XQ(C)::P=Q
- R(c);XQ(C)::P=Q
- R(c);N_SPINB(e),OGATE,XB(D)::QAB(C),XB(e)
- B(e);N_PINR(F)::R(F)
- Q(a);N_PINR(F),P_PINR(A)::P=Q
- Q(a);::P=Q
- R(c);::P=Q
- P(f);::P=Q
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).