MESON Chess Problem Database
Problem Display
PID: 201549 (7K/2N1P2B/2P5/8/2kP1R2/R1BN4/4q3/8 w - - 0 1)
van der Ven, AMA
Utrecht Dagblad, 1922
#2
10 + 2
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 2.d5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 1...Qxd3
- 2.Bg8#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 2.d5#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 2.d5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 2.d5#
- 1...Qc2
- 2.Se5#
- 2.d5#
- 1...Qd2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Qh2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe4
- 2.Sb2#
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qe6
- 2.Sb2#
- 1...Qxe7
- 2.Sb2#
- 1...Qd1
- Tries
- 1.Bd2?
- threat
- 2.Sb2#
- 2.Rc3#
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qxd3
- 2.Bxd3#
- 2.Bg8#
- 1...Qxd2
- 2.Bg8#
- 1...Qe4!
- threat
- 1.Ba5?
- threat
- 2.Rc3#
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qxd3
- 2.Bxd3#
- 2.Bg8#
- 1...Qe1
- 2.Sb2#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 2.Bg8#
- 1...Qc2
- 2.Se5#
- 2.Bg8#
- 2.d5#
- 1...Qd2
- 2.Se5#
- 2.Bg8#
- 1...Qe4!
- threat
- 1.Bg8+?
- 1...Qe6
- 2.Sb2#
- 2.Se5#
- 1...Kxd3!
- 1...Qe6
- 1.Rf1?
- 1...Qe5+
- 2.Sxe5#
- 1...Qxf1
- 2.Sb2#
- 2.Se5#
- 1...Qxd3
- 2.Bg8#
- 1...Qxe7
- 2.Sb2#
- 1...Qe4
- 2.Sb2#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qh2!
- 1...Qe5+
- 1.Rf3?
- 1...Qe5+
- 2.Sxe5#
- 1...Qxd3
- 2.Bxd3#
- 2.Bg8#
- 1...Qxf3
- 2.Sb2#
- 2.Se5#
- 1...Qxe7
- 2.Sb2#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 2.Bg8#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 2.Bg8#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 2.Bg8#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 2.Bg8#
- 1...Qc2
- 2.Se5#
- 2.Bg8#
- 1...Qd2
- 2.Se5#
- 2.Bg8#
- 1...Qf2
- 2.Se5#
- 2.Bg8#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe4
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qh2!
- 1...Qe5+
- 1.Rg4?
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qxd3
- 2.Bg8#
- 1...Qxg4
- 2.Sb2#
- 2.Se5#
- 1...Qxe7
- 2.Sb2#
- 1...Qe4
- 2.Sb2#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 2.d5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 2.d5#
- 1...Qc2
- 2.Se5#
- 2.d5#
- 1...Qd2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qh2!
- 1...Qe5+
- 1.Rh4?
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qxd3
- 2.Bg8#
- 1...Qxe7
- 2.Sb2#
- 1...Qe4
- 2.Sb2#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 2.d5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 2.d5#
- 1...Qc2
- 2.Se5#
- 2.d5#
- 1...Qd2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qh2!
- 1...Qe5+
- 1.Rf5?
- threat
- 2.Rc5#
- 1...Qe5+
- 2.Sxe5#
- 1...Qxe7
- 2.Sb2#
- 1...Qh5
- 2.Sb2#
- 2.Se5#
- 1...Qe4
- 2.Sb2#
- 1...Kxd3!
- threat
- 1.Rf6?
- 1...Qxd3
- 2.Bg8#
- 1...Qxe7
- 2.Sb2#
- 1...Qe4
- 2.Sb2#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe5
- 2.Sb2#
- 2.Sxe5#
- 1...Qe6
- 2.Sb2#
- 1...Qh2!
- 1...Qxd3
- 1.Rf8?
- 1...Qe5+
- 2.Sxe5#
- 1...Qxd3
- 2.Bg8#
- 1...Qxe7
- 2.Sb2#
- 1...Qe4
- 2.Sb2#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qh2!
- 1...Qe5+
- 1.e8Q?
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qxd3
- 2.Bg8#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...Qe4
- 2.Sb2#
- 1...Qh2
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 2.d5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 2.d5#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 2.d5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 2.d5#
- 1...Qc2
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 2.d5#
- 1...Qd2
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...Qf2
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 2.Qxe6#
- 1...Qe7
- 2.Sb2#
- 1...Qxe8+!
- 1...Qe5+
- 1.e8S?
- threat
- 2.Sd6#
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qe4
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qe7
- 2.Sb2#
- 1...Qxe8+!
- threat
- 1.e8B?
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qxd3
- 2.Bg8#
- 2.Bf7#
- 1...Qe4
- 2.Sb2#
- 1...Qh2
- 2.Se5#
- 2.Bf7#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 2.Bf7#
- 2.d5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 2.Bf7#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 2.d5#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 2.Bf7#
- 2.d5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 2.Bf7#
- 2.d5#
- 1...Qc2
- 2.Se5#
- 2.Bf7#
- 2.d5#
- 1...Qd2
- 2.Se5#
- 2.Bf7#
- 1...Qf2
- 2.Se5#
- 2.Bf7#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qe7
- 2.Sb2#
- 1...Qxe8+!
- 1...Qe5+
- 1.e8R?
- 1...Qe5+
- 2.Sxe5#
- 2.dxe5#
- 1...Qxd3
- 2.Bg8#
- 1...Qe4
- 2.Sb2#
- 1...Qh2
- 2.Se5#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 2.d5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 2.d5#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 2.d5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 2.d5#
- 1...Qc2
- 2.Se5#
- 2.d5#
- 1...Qd2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qe7
- 2.Sb2#
- 1...Qxe8+!
- 1...Qe5+
- 1.Bd2?
- Keys
- 1.Rf2!
- 1...Qe5+
- 2.Sxe5#
- 1...Qxd3
- 2.Bg8#
- 1...Qxf2
- 2.Se5#
- 1...Qxe7
- 2.Sb2#
- 1...Qe4
- 2.Sb2#
- 1...Qf3
- 2.Sb2#
- 2.Se5#
- 1...Qd1
- 2.Sb2#
- 2.Se5#
- 1...Qf1
- 2.Sb2#
- 2.Se5#
- 1...Qg4
- 2.Sb2#
- 2.Se5#
- 1...Qh5
- 2.Sb2#
- 1...Qe1
- 2.Sb2#
- 1...Qa2
- 2.Se5#
- 1...Qb2
- 2.Sxb2#
- 2.Se5#
- 1...Qc2
- 2.Se5#
- 1...Qd2
- 2.Se5#
- 1...Qe3
- 2.Sb2#
- 1...Qe6
- 2.Sb2#
- 1...Qe5+
- 1.Rf2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- Q(a);N_GUARD,SBLOCK,XS(C)::B(I)
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD,P_PINB(I)::S(C)
- Q(a);N_GUARD,XP(H)::S(C)
- Tries
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XB(B)::B(I)
- Refutation
- Q(a);
- Try
- B(B);
- Threat
- R1(A)
- Vars
- Q(a);N_GUARD::S(C)
- Refutation
- Q(a);
- Try
- B(I);CHECK
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- R(E);
- Vars
- Q(a);CHECK,N_GUARD::S(C),XQ(a)
- Q(a);N_GUARD,SBLOCK,XS(C)::B(I)
- Q(a);N_GUARD,XP(H)::S(C)
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD,P_PINB(I)::S(C)
- Refutation
- Q(a);P_PINB(I)
- Try
- R(E);
- Vars
- Q(a);CHECK,N_GUARD::S(C),XQ(a)
- Q(a);N_GUARD,XP(H)::S(C)
- Q(a);N_GUARD::S(C)
- Refutation
- Q(a);P_PINB(I)
- Try
- R(E);
- Vars
- Q(a);N_GUARD,SBLOCK,XS(C)::B(I)
- Q(a);N_GUARD,XP(H)::S(C)
- Q(a);N_GUARD::S(C)
- Refutation
- Q(a);P_PINB(I)
- Try
- R(E);
- Vars
- Q(a);N_GUARD,SBLOCK,XS(C)::B(I)
- Q(a);N_GUARD,XP(H)::S(C)
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD,P_PINB(I)::S(C)
- Refutation
- Q(a);
- Try
- R(E);
- Threat
- R1(E)
- Vars
- Q(a);CHECK,N_GUARD::S(C),XQ(a)
- Q(a);N_GUARD,XP(H)::S(C)
- Q(a);N_GUARD::S(C)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- R(E);
- Vars
- Q(a);N_GUARD,SBLOCK,XS(C)::B(I)
- Q(a);N_GUARD,XP(H)::S(C)
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD,P_PINB(I)::S(C)
- Refutation
- Q(a);P_PINB(I)
- Try
- R(E);
- Vars
- Q(a);CHECK,N_GUARD::S(C),XQ(a)
- Q(a);N_GUARD,SBLOCK,XS(C)::B(I)
- Q(a);N_GUARD,XP(H)::S(C)
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD,P_PINB(I)::S(C)
- Refutation
- Q(a);P_PINB(I)
- Try
- P(H);
- Vars
- Q(a);N_GUARD::S(C)
- Refutation
- Q(a);CHECK,XQ(H)
- Try
- P(H);
- Threat
- S(H)
- Vars
- Q(a);N_GUARD::S(C)
- Refutation
- Q(a);CHECK,XS(H)
- Try
- P(H);
- Vars
- Q(a);N_GUARD::S(C)
- Refutation
- Q(a);CHECK,XB(H)
- Try
- P(H);
- Vars
- Q(a);N_GUARD,SBLOCK,XS(C)::B(I)
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD,P_PINB(I)::S(C)
- Refutation
- Q(a);CHECK,XR(H)
- Try
- Actual
- R(E);
- Vars
- Q(a);CHECK,N_GUARD::S(C),XQ(a)
- Q(a);N_GUARD,SBLOCK,XS(C)::B(I)
- Q(a);N_GUARD,XR(E)::S(C)
- Q(a);N_GUARD,XP(H)::S(C)
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD,P_PINB(I)::S(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).