MESON Chess Problem Database
Problem Display
PID: 71743 (2R5/7B/p4P1P/r3RKP1/2b2PN1/3k1rNq/1Bnp1P2/1Q6 w - - 0 1)
Drese, Gerardus Hendrikus
van Gool, Johann Christoffel
von Meyenfeldt, Frits H
1st Place, 01. WCCT, 1972-1975
#2
13 + 8
| 102 | Probleemblad | 1976 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Qxf1#
- 1...Qxg4+
- 2.Kxg4#
- 1...Qh2
- 2.Qf1#
- 1...Qxg3
- 2.Qf1#
- 1...Qh4
- 2.Qf1#
- 1...Qh5
- 2.Qf1#
- 1...Qxh6
- 2.Qf1#
- 1...Rxf4+
- 2.Kxf4#
- 1...Rd5
- 2.Ke6#
- 1...Rxe5+
- 2.Kxe5#
- 1...Ba2
- 2.Qxc2#
- 1...Bb5
- 2.Ke6#
- 2.Rd5#
- 2.Qxc2#
- 1...Bd5
- 2.Qxc2#
- 1...Be6+
- 2.Kxe6#
- 1...Bf7
- 2.Qxc2#
- 1...Bg8
- 2.Qxc2#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Qf1
- Tries
- 1.Rd5+?
- 1...Bxd5
- 2.Qxc2#
- 1...Rxd5+!
- 1...Bxd5
- 1.Rd8+?
- 1...Rd5
- 2.Ke6#
- 1...Bd5!
- 1...Rd5
- 1.f7?
- threat
- 2.Kf6#
- 1...Qxg4+
- 2.Kxg4#
- 1...Rxf4+
- 2.Kxf4#
- 1...Rxe5+
- 2.Kxe5#
- 1...Be6+
- 2.Kxe6#
- 1...Qxh6
- 2.Qf1#
- 1...Bxf7
- 2.Qxc2#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Qh5
- 2.Qf1#
- 1...Bd5
- 2.Qxc2#
- 1...Re3!
- threat
- 1.Rd5+?
- Keys
- 1.Kg6!
- threat
- 2.Kg7#
- 1...Qh5+
- 2.Kxh5#
- 1...Qxh6+
- 2.Kxh6#
- 1...Bf7+
- 2.Kxf7#
- 1...Qxg4
- 2.Qf1#
- 1...Rxf4
- 2.Re3#
- 1...Rxe5
- 2.Sxe5#
- 1...d1Q
- 2.Qxd1#
- 1...d1S
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Re3
- 2.Rxe3#
- 1...Bd5
- 2.Qxc2#
- 1...Be6
- 2.Qxc2#
- 1...Bg8
- 2.Qxc2#
- threat
- 1.Kg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(e);N_GUARD,N_PINS(F)::QAB(A),XQ(e)
- Q(e);CHECK,XS(F)::B(L)+K(H),XQ(e)
- Q(e);N_GUARD,N_PINS(F)::QAB(A)
- Q(e);N_GUARD,N_PINS(F),XS(D)::QAB(A)
- Q(e);N_GUARD,N_PINS(F),XP(K)::QAB(A)
- R(d);CHECK,XP(E)::B(L)+K(H),XR(d)
- R(g);::B(L)+K(H)
- R(g);CHECK,XR(G)::B(L)+K(H),XR(g)
- B(f);::QAB1(A),XS(a)
- B(f);N_PINR(G)::QAB1(A),XS(a)
- B(f);CHECK::B(L)+K(H),XB(f)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);OGATEB::QAR2(A),XS(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- Tries
- Try
- R(G);CHECK
- Vars
- B(f);XR(G)::QAB1(A),XS(a)
- Refutation
- R(g);CHECK,XR(G)
- Try
- R(M);CHECK
- Vars
- R(g);P_SPINR(g)::B(L)+K(H)
- Refutation
- B(f);N_PINR(G),P_SPINB(f)
- Try
- P(J);
- Threat
- B(L)+K(H)
- Vars
- Q(e);CHECK,XS(F)::B(L)+K(H),XQ(e)
- R(d);CHECK,XP(E)::B(L)+K(H),XR(d)
- R(g);CHECK,XR(G)::B(L)+K(H),XR(g)
- B(f);CHECK::B(L)+K(H),XB(f)
- Q(e);N_GUARD,N_PINS(F),XP(K)::QAB(A)
- B(f);XP(J)::QAB1(A),XS(a)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);OGATEB::QAR2(A),XS(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- Q(e);N_GUARD,N_PINS(F)::QAB(A)
- B(f);N_PINR(G)::QAB1(A),XS(a)
- Refutation
- R(d);N_PINP(E)
- Try
- Actual
- K(H);N_SPINP(E),N_SPINR(G),N_SPINS(F),S_FLIGHT
- Threat
- B(L)+K(H)
- Vars
- Q(e);CHECK::B(L)+K(H),XQ(e)
- Q(e);CHECK,XP(K)::B(L)+K(H),XQ(e)
- B(f);CHECK::B(L)+K(H),XB(f)
- Q(e);N_GUARD,P_PINP(I),XS(F)::QAB(A)
- R(d);N_GUARD,XP(E)::R1(G)
- R(g);XR(G)::S(F),XR(g)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);OGATEB::QAR2(A),XS(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- R(d);N_GUARD::R1(G),XR(d)
- B(f);::QAB1(A),XS(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).