MESON Chess Problem Database
Problem Display
PID: 239154 (1b2N2R/3pBk1p/KQ4rq/6pB/8/3N4/4Rr2/8 w - - 0 1)
Groeneveld, Cornelis
Sachove umeni (Ceskoslovensky sach), 2001
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qf8
- 2.Rxf8#
- 1...Qxh5
- 2.Rf8#
- 1...Rxe2
- 2.Qf6#
- 1...Rg2
- 2.Qf6#
- 1...Rh2
- 2.Qf6#
- 1...Rf6
- 2.Qxf6#
- 1...Bf4
- 2.Qf6#
- 1...Bd6
- 2.Qb3#
- 1...d5
- 2.Qe6#
- 1...d6
- 2.Qxf2#
- 1...Qf8
- Tries
- 1.Bxg6+?
- 1...Qxg6
- 2.Rf8#
- 1...hxg6!
- 1...Qxg6
- 1.Bb4?
- threat
- 2.Re7#
- 1...Rxe2
- 2.Qf6#
- 1...Qf8
- 2.Rxf8#
- 1...Be5
- 2.Sxe5#
- 1...d6
- 2.Qxf2#
- 1...Bd6!
- threat
- 1.Bc5?
- threat
- 2.Re7#
- 1...Rxe2
- 2.Qf6#
- 1...Qf8
- 2.Rxf8#
- 1...Be5
- 2.Sxe5#
- 1...Bd6
- 2.Qb3#
- 1...d6!
- threat
- 1.Bd6?
- threat
- 2.Re7#
- 2.Qxf2#
- 2.Qb3#
- 1...Qxh5
- 2.Re7#
- 2.Rf8#
- 1...Bxd6
- 2.Qb3#
- 1...Qg7
- 2.Re7#
- 2.Qb3#
- 1...Qf8
- 2.Rxf8#
- 2.Qxf2#
- 2.Qb3#
- 1...Rf1
- 2.Re7#
- 2.Qb3#
- 1...Rg2
- 2.Re7#
- 2.Qb3#
- 1...Rh2
- 2.Re7#
- 2.Qb3#
- 1...Rf3
- 2.Re7#
- 2.Qb3#
- 1...Rf4
- 2.Re7#
- 1...Rf5
- 2.Re7#
- 1...Rf6
- 2.Re7#
- 1...Ba7
- 2.Re7#
- 2.Qb3#
- 1...g4
- 2.Re7#
- 2.Qb3#
- 1...Rxe2!
- threat
- 1.Bd8?
- threat
- 2.Re7#
- 1...Rxe2
- 2.Qf6#
- 1...Be5
- 2.Sxe5#
- 1...Bd6
- 2.Qb3#
- 1...Qf8!
- threat
- 1.Rxf2+?
- 1...Bf4
- 2.Qf6#
- 1...Kxe7!
- 1...Bf4
- 1.Bxg6+?
- Keys
- 1.Ba3!
- threat
- 2.Re7#
- 1...Rxe2
- 2.Qf6#
- 1...Qf8
- 2.Rxf8#
- 1...Be5
- 2.Sxe5#
- 1...Bd6
- 2.Qb3#
- 1...d6
- 2.Qxf2#
- threat
- 1.Ba3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(d);N_GUARD::R1(H),XQ(d)
- Q(d);N_GUARD,N_SPINR(c),XB(C)::R1(H)
- R(a);N_GUARD,XR(A)::QAR1(E)
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- B(h);S_CUTR(a)::QAR1(E)
- B(h);N_PINQ(E)::QAB(E)
- P(e);N_GUARD::QAB1(E)
- P(e);N_PINQ(E)::QAR(E),XR(a)
- Tries
- Try
- B(C);CHECK,N_SPINQ(E),XR(c)
- Vars
- Q(d);P_PINQ(E),XB(C)::R1(H)
- Refutation
- P(g);XB(C)
- Try
- B(F);
- Threat
- R1(A)
- Vars
- R(a);N_GUARD,XR(A)::QAR1(E)
- Q(d);N_GUARD::R1(H),XQ(d)
- B(h);N_GUARD::S(B),XB(h)
- P(e);N_PINQ(E)::QAR(E),XR(a)
- Refutation
- B(h);N_PINQ(E)
- Try
- B(F);
- Threat
- R1(A)
- Vars
- R(a);N_GUARD,XR(A)::QAR1(E)
- Q(d);N_GUARD::R1(H),XQ(d)
- B(h);N_GUARD::S(B),XB(h)
- B(h);N_PINQ(E)::QAB(E)
- Refutation
- P(e);N_PINQ(E)
- Try
- B(F);N_SPINQ(E)
- Threat
- DUALS(3)
- Vars
- B(h);XB(F)::QAB(E)
- R(a);::R1(A)
- Refutation
- R(a);XR(A)
- Try
- B(F);
- Threat
- R1(A)
- Vars
- R(a);N_GUARD,XR(A)::QAR1(E)
- B(h);N_GUARD::S(B),XB(h)
- B(h);N_PINQ(E)::QAB(E)
- Refutation
- Q(d);
- Try
- R(A);CHECK,XR(a)
- Vars
- B(h);P_SPINB(h)::QAR1(E)
- Refutation
- K(f);N_SPINR(c),P-FLIGHT,XB(F)
- Try
- Actual
- B(F);
- Threat
- R1(A)
- Vars
- R(a);N_GUARD,XR(A)::QAR1(E)
- Q(d);N_GUARD::R1(H),XQ(d)
- B(h);N_GUARD::S(B),XB(h)
- B(h);N_PINQ(E)::QAB(E)
- P(e);N_PINQ(E)::QAR(E),XR(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).