MESON Chess Problem Database
Problem Display
PID: 145512 (4B3/1pR1PK2/3b2p1/6Rb/2N1k3/1qP3P1/2p1PQp1/5r1N w - - 0 1)
Goldschmeding, Cornelis
1st Prize, De Waarheid, 1972
#2
11 + 9
| 274 | diagrammes | 1974 |
SOLUTION
- SOUND
- Sets
- 1...Qa4
- 2.Sd2#
- 2.Sxd6#
- 1...Qxc4+
- 2.Rxc4#
- 1...Qb1
- 2.Sd2#
- 2.Sxd6#
- 1...Qb2
- 2.Sd2#
- 2.Sxd6#
- 1...Qa3
- 2.Sd2#
- 1...Qxc3
- 2.Sxd6#
- 1...Qb4
- 2.Sd2#
- 1...Qb5
- 2.Sd2#
- 2.Sxd6#
- 1...Qb6
- 2.Sd2#
- 1...Ra1
- 2.Qe3#
- 2.Qd4#
- 1...Rb1
- 2.Qe3#
- 2.Qd4#
- 1...Rc1
- 2.Qe3#
- 2.Qd4#
- 1...Rd1
- 2.Qe3#
- 1...Re1
- 2.Qe3#
- 2.Qd4#
- 1...Rg1
- 2.Qe3#
- 2.Qd4#
- 1...Rxh1
- 2.Qe3#
- 2.Qd4#
- 1...Rxf2+
- 2.Sxf2#
- 1...Bf3
- 2.Qe3#
- 2.Qd4#
- 1...Ba3
- 2.Re5#
- 1...Bxg3
- 2.Sxg3#
- 1...Bb4
- 2.Re5#
- 1...Bf4
- 2.Qd4#
- 1...Bc5
- 2.Re5#
- 1...Be5
- 2.Rxe5#
- 1...Bxe7
- 2.Re5#
- 2.Rxe7#
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Qa4
- Tries
- 1.Kf6?
- threat
- 2.Sd2#
- 2.Sxd6#
- 1...Rxf2+
- 2.Sxf2#
- 1...Be5+
- 2.Rxe5#
- 1...Bxe7+
- 2.Rxe7#
- 1...Qxc4
- 2.Rxc4#
- 1...Bxe2
- 2.Bxg6#
- 1...Bxg3
- 2.Sxg3#
- 2.Sd2#
- 1...Bxc7
- 2.Sd2#
- 1...c1Q
- 2.Sxd6#
- 1...c1B
- 2.Sxd6#
- 1...Qa3
- 2.Sd2#
- 1...Qb4
- 2.Sd2#
- 1...Qb6
- 2.Sd2#
- 1...Rd1
- 2.Qe3#
- 1...Ba3
- 2.Sd2#
- 2.Re5#
- 1...Bb4
- 2.Sd2#
- 2.Re5#
- 1...Bf4
- 2.Qd4#
- 1...Bc5
- 2.Sd2#
- 2.Re5#
- 1...Qxc3+!
- threat
- 1.Kg7?
- threat
- 2.Sd2#
- 2.Sxd6#
- 2.Qe3#
- 2.Qd4#
- 1...Be5+
- 2.Rxe5#
- 1...Qxc4
- 2.Rxc4#
- 1...Rxf2
- 2.Sxf2#
- 1...Bxe2
- 2.Bxg6#
- 2.Qe3#
- 2.Qxe2#
- 1...Bxg3
- 2.Sxg3#
- 2.Sd2#
- 2.Qe3#
- 2.Qd4#
- 1...Bxc7
- 2.Sd2#
- 2.Qe3#
- 2.Qd4#
- 1...Bxe7
- 2.Sd2#
- 2.Re5#
- 2.Rxe7#
- 2.Qe3#
- 2.Qd4#
- 1...c1Q
- 2.Sxd6#
- 2.Qd4#
- 1...c1B
- 2.Sxd6#
- 2.Qd4#
- 1...g1Q
- 2.Sd2#
- 2.Sxd6#
- 1...g1B
- 2.Sd2#
- 2.Sxd6#
- 1...Qa3
- 2.Sd2#
- 2.Qe3#
- 2.Qd4#
- 1...Qb4
- 2.Sd2#
- 2.Qe3#
- 2.Qd4#
- 1...Qb6
- 2.Sd2#
- 1...Rd1
- 2.Qe3#
- 1...Ba3
- 2.Sd2#
- 2.Re5#
- 2.Qe3#
- 2.Qd4#
- 1...Bb4
- 2.Sd2#
- 2.Re5#
- 2.Qe3#
- 2.Qd4#
- 1...Bf4
- 2.Qd4#
- 1...Bc5
- 2.Sd2#
- 2.Re5#
- 1...Qxc3+!
- threat
- 1.Kf6?
- Keys
- 1.Kf8!
- threat
- 2.Sd2#
- 2.Sxd6#
- 1...Rxf2+
- 2.Sxf2#
- 1...Bxe7+
- 2.Rxe7#
- 1...Qxc4
- 2.Rxc4#
- 1...Qxc3
- 2.Sxd6#
- 1...Bxe2
- 2.Bxg6#
- 1...Bxg3
- 2.Sxg3#
- 2.Sd2#
- 1...Bxc7
- 2.Sd2#
- 1...Be5
- 2.Rxe5#
- 1...c1Q
- 2.Sxd6#
- 1...c1B
- 2.Sxd6#
- 1...Qa3
- 2.Sd2#
- 1...Qb4
- 2.Sd2#
- 1...Qb6
- 2.Sd2#
- 1...Rd1
- 2.Qe3#
- 1...Ba3
- 2.Sd2#
- 2.Re5#
- 1...Bb4
- 2.Sd2#
- 2.Re5#
- 1...Bf4
- 2.Qd4#
- 1...Bc5
- 2.Sd2#
- 2.Re5#
- threat
- 1.Kf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- Q(d);CHECK,OGATE,XS(F)::R(H),XQ(d)
- Q(d);N_PINS(F)::S(F)
- Q(d);N_PINS(F),XP(D)::S(F),XB(g)
- R(a);N_PINQ(C)::QAR1(C)
- R(a);CHECK,XQ(C)::S(A),XR(a)
- B(g);N_GUARD::R1(G)
- B(g);XP(E)::S(A),XB(g)
- B(g);N_PINQ(C)::QAR1(C)
- B(g);N_GUARD::R1(G),XB(g)
- P(i);N_GUARD::B(K)
- Tries
- Try
- K(J);N_SPINS(F),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,XQ(C)::S(A),XR(a)
- B(g);CHECK,N_GUARD::R1(G),XB(g)
- B(g);CHECK,OGATE,XP(I)::R(H),XB(g)
- Q(d);OGATE,XS(F)::R(H),XQ(d)
- B(f);N_GUARD,XP(B)::B(K),XP(h)
- B(g);XR(H)::S(F)
- P(b);::S(F),XB(g)
- Q(d);::S(F)
- R(a);N_PINQ(C)::QAR1(C)
- B(g);N_PINQ(C)::QAR1(C)
- Refutation
- Q(d);CHECK,XP(D)
- Try
- K(J);N_SPINQ(C),N_SPINS(F),P-FLIGHT
- Threat
- DUALS(4)
- Vars
- B(g);CHECK,N_GUARD::R1(G),XB(g)
- Q(d);OGATE,XS(F)::R(H),XQ(d)
- R(a);XQ(C)::S(A),XR(a)
- Q(d);::S(F)
- R(a);::QAR1(C)
- B(g);::QAR1(C)
- Refutation
- Q(d);CHECK,XP(D)
- Try
- Actual
- K(J);N_SPINS(F),P-FLIGHT,P_SPINP(I)
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,XQ(C)::S(A),XR(a)
- B(g);CHECK,OGATE,XP(I)::R(H),XB(g)
- Q(d);OGATE,XS(F)::R(H),XQ(d)
- Q(d);XP(D)::S(F),XB(g)
- B(f);N_GUARD,XP(B)::B(K),XP(h)
- B(g);N_PINP(I),XR(H)::S(F)
- B(g);N_GUARD,N_PINP(I)::R1(G),XB(g)
- P(b);::S(F),XB(g)
- Q(d);::S(F)
- R(a);N_PINQ(C)::QAR1(C)
- B(g);N_PINP(I),N_PINQ(C)::QAR1(C)
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).