MESON Chess Problem Database
Problem Display
PID: 80408 (1n1KR3/1N4Q1/2p2R2/8/1B1k3q/3p1b2/B2p1P2/8 w - - 0 1)
Drese, Gerardus Hendrikus
Limburgs Dagblad, 1941
#2
8 + 7
| 6426 | Probleemcomponisten V - G H Drese | 1947 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Rxf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rxc6#
- 2.Rd6#
- 2.Rfe6#
- 2.Rg6#
- 2.Rh6#
- 2.Rf7#
- 2.Rff8#
- 1...Qg3
- 2.Rf4#
- 2.Rd6#
- 1...Qxf6+
- 2.Qxf6#
- 1...Qh1
- 2.Rxf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rxc6#
- 2.Rd6#
- 2.Rfe6#
- 2.Rg6#
- 2.Rh6#
- 2.Rf7#
- 2.Rff8#
- 1...Qh2
- 2.Rf4#
- 2.Rd6#
- 1...Qh3
- 2.Rxf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rxc6#
- 2.Rd6#
- 2.Rfe6#
- 2.Rg6#
- 2.Rh6#
- 2.Rf7#
- 2.Rff8#
- 1...Qe4
- 2.Rf4#
- 2.Rd6#
- 1...Qf4
- 2.Rxf4#
- 2.Rd6#
- 1...Qg4
- 2.Rf4#
- 2.Rd6#
- 2.Rg6#
- 1...Qh5
- 2.Rf4#
- 2.Rf5#
- 2.Rd6#
- 1...Qh6
- 2.Rf4#
- 2.Rd6#
- 2.Rxh6#
- 1...Qh7
- 2.Rf4#
- 2.Rd6#
- 1...Qh8
- 2.Rf4#
- 2.Rd6#
- 1...Qxf2
- Tries
- 1.Kc7?
- threat
- 2.Rf4#
- 2.Rd6#
- 1...Qf4+
- 2.Rxf4#
- 2.Rd6#
- 1...Qxf6
- 2.Qxf6#
- 1...Be4
- 2.Rd6#
- 1...Bd5
- 2.Rf4#
- 1...Sa6+!
- threat
- 1.Re7?
- threat
- 2.Rf4#
- 2.Rd6#
- 1...Qxf6
- 2.Qxf6#
- 1...Qf4
- 2.Rxf4#
- 2.Rd6#
- 1...Be4
- 2.Rd6#
- 1...Bd5
- 2.Rf4#
- 1...Qh8+!
- threat
- 1.Qg5?
- threat
- 2.Qe3#
- 2.Qc5#
- 2.Qe5#
- 1...Qxf2
- 2.Qc5#
- 2.Qe5#
- 1...d1S
- 2.Qc5#
- 2.Qe5#
- 1...Qg3
- 2.Qe3#
- 2.Qc5#
- 1...Qh2
- 2.Qe3#
- 2.Qc5#
- 1...Qe4
- 2.Qc5#
- 1...Qf4
- 2.Qc5#
- 1...Qh5
- 2.Qe3#
- 1...Qh6
- 2.Qc5#
- 2.Qe5#
- 1...Bd5
- 2.Qe3#
- 2.Qe5#
- 1...Sa6
- 2.Qe3#
- 2.Qe5#
- 1...Sd7
- 2.Qe3#
- 1...c5
- 2.Qe3#
- 2.Qxc5#
- 2.Qe5#
- 1...Qxg5!
- threat
- 1.Qe7?
- threat
- 2.Qc5#
- 2.Qe3#
- 2.Qe5#
- 1...Qxf2
- 2.Qc5#
- 2.Qe5#
- 1...Qxf6
- 2.Qxf6#
- 1...d1S
- 2.Qc5#
- 2.Qe5#
- 1...Qg3
- 2.Qc5#
- 2.Qe3#
- 1...Qh2
- 2.Qc5#
- 2.Qe3#
- 1...Qe4
- 2.Qc5#
- 1...Qf4
- 2.Qc5#
- 1...Qh5
- 2.Qe3#
- 1...Qh6
- 2.Qc5#
- 2.Qe5#
- 1...Be4
- 2.Qc5#
- 2.Qe5#
- 1...Sa6
- 2.Qe3#
- 2.Qe5#
- 1...Sd7
- 2.Qe3#
- 1...c5
- 2.Qxc5#
- 2.Qe3#
- 2.Qe5#
- 1...Qg5!
- threat
- 1.Qf7?
- threat
- 2.Qc4#
- 1...Qxf6+
- 2.Qxf6#
- 1...Bd5!
- threat
- 1.Kc7?
- Keys
- 1.Be7!
- threat
- 2.Rf4#
- 1...Kc3
- 2.Rxc6#
- 1...Ke4
- 2.Bc5#
- 1...Ke5
- 2.Bc5#
- 1...Qxf2
- 2.Re6#
- 1...Qxf6
- 2.Bxf6#
- 1...Qf4
- 2.Rxf4#
- 1...Be4
- 2.Rd6#
- threat
- 1.Be7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- Q(e);CHECK,OGATE,P_SPINQ(e),XR(D)::QAB(F),XQ(e)
- Tries
- Try
- K(G);N_SPINR(D),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- Q(e);OGATE,P_SPINQ(e),XR(D)::QAB(F),XQ(e)
- B(c);::QAB(F)+R(D),DCHECK
- Refutation
- S(g);CHECK
- Try
- R(H);N_SPINR(D)
- Threat
- DUALS(2)
- Vars
- Q(e);OGATE,P_PINR(H),P_SPINQ(e),XR(D)::QAB(F),XQ(e)
- B(c);::QAB(F)+R(D),DCHECK
- Refutation
- Q(e);CHECK
- Try
- Q(F);N_SPINR(D)
- Threat
- DUALS(3)
- Vars
- Q(e);::QAB1(F)
- S(g);::QAB1(F)
- Refutation
- Q(e);P_PINR(D),XQ(F)
- Try
- Q(F);N_SPINR(D)
- Threat
- DUALS(3)
- Vars
- Q(e);OGATE,P_PINQ(F),XR(D)::QAB(F),XQ(e)
- Q(e);::QAB1(F)
- S(g);::QAB1(F)
- Refutation
- Q(e);
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- Q(e);CHECK,OGATE,XR(D)::QAB(F),XQ(e)
- Refutation
- B(c);
- Try
- Actual
- B(C);N_SPINR(D)
- Threat
- QAB(F)+R(D),DCHECK
- Vars
- K(d);S_FLIGHT::QAB(F)+R(D),DCHECK,XP(f)
- K(d);P-FLIGHT::R(H)+B(C)
- K(d);S_FLIGHT::R(H)+B(C)
- Q(e);N_GUARD,XP(B)::QAB(F)+R(D)
- Q(e);OGATE,P_PINB(C),P_SPINQ(e),XR(D)::B(C),XQ(e)
- Q(e);::QAB(F)+R(D),DCHECK,XQ(e)
- B(c);SBLOCK::QAB(F)+R(D),DCHECK
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).