MESON Chess Problem Database
Problem Display
PID: 103936 (KN2R3/8/2R5/p3b1r1/1P1k4/3p1Q2/6q1/3N3B w - - 0 1)
Sanderse, Jacobus Theodorus
Benninger Tournament, 1950
#2
8 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Qe4#
- 2.Qd5#
- 2.Qe3#
- 1...Qh3
- 2.Qe4#
- 2.Qd5#
- 1...Qg1
- 2.Qe4#
- 2.Qd5#
- 1...Qa2
- 2.Qe4#
- 2.Qe3#
- 1...Qb2
- 2.Qe4#
- 2.Qd5#
- 2.Qe3#
- 1...Qc2
- 2.Qe4#
- 2.Qd5#
- 2.Qe3#
- 1...Qd2
- 2.Qe4#
- 2.Qd5#
- 1...Qe2
- 2.Qd5#
- 1...Qf2
- 2.Qe4#
- 2.Qd5#
- 2.Qxf2#
- 1...Qh2
- 2.Qe4#
- 2.Qd5#
- 2.Qe3#
- 1...Qg3
- 2.Qe4#
- 2.Qd5#
- 1...Qg4
- 2.Qd5#
- 2.Qf2#
- 2.Qe3#
- 1...Qf1
- Tries
- 1.Sb2?
- threat
- 2.Rc4#
- 2.Qxd3#
- 1...Qxb2
- 2.Qe4#
- 1...Qf1
- 2.Rc4#
- 2.Qe4#
- 1...Qh3
- 2.Rc4#
- 2.Qe4#
- 1...Qc2
- 2.Qe4#
- 1...Qd2
- 2.Rc4#
- 2.Qe4#
- 1...Qe2
- 2.Rc4#
- 1...Qg3
- 2.Rc4#
- 2.Qe4#
- 1...Rg3
- 2.Rc4#
- 1...d2
- 2.Rc4#
- 2.Qd3#
- 1...Qxf3!
- threat
- 1.Sc3?
- threat
- 2.Sb5#
- 1...Bxb8
- 2.Re4#
- 2.Qe3#
- 1...Bh2
- 2.Re4#
- 2.Qe3#
- 1...Bg3
- 2.Re4#
- 2.Qe3#
- 1...Bf4
- 2.Re4#
- 1...Bd6
- 2.Re4#
- 2.Qe3#
- 1...Bf6
- 2.Re4#
- 2.Qe3#
- 1...Bc7
- 2.Re4#
- 2.Qe3#
- 1...Bg7
- 2.Re4#
- 2.Qe3#
- 1...Bh8
- 2.Re4#
- 2.Qe3#
- 1...Qxf3!
- threat
- 1.Se3?
- threat
- 2.Rc4#
- 1...d2
- 2.Sc2#
- 1...Qa2
- 2.Qe4#
- 1...Qc2
- 2.Qe4#
- 1...Qxf3!
- threat
- 1.Bxg2?
- threat
- 2.Qe4#
- 2.Qd5#
- 2.Qf2#
- 2.Qe3#
- 1...Bxb8
- 2.Qe4#
- 2.Qf2#
- 2.Qe3#
- 1...Rg3
- 2.Qe4#
- 2.Qd5#
- 1...Rg4
- 2.Qd5#
- 2.Qf2#
- 2.Qe3#
- 1...Rf5
- 2.Qe4#
- 2.Qd5#
- 2.Qe3#
- 1...Bh2
- 2.Qe4#
- 2.Qf2#
- 2.Qe3#
- 1...Bg3
- 2.Qe4#
- 2.Qe3#
- 1...Bf4
- 2.Qe4#
- 2.Qxf4#
- 1...Bd6
- 2.Qe4#
- 2.Qf2#
- 2.Qe3#
- 1...Bf6
- 2.Qe4#
- 2.Qf2#
- 2.Qe3#
- 2.Qf4#
- 1...Bc7
- 2.Qe4#
- 2.Qf2#
- 2.Qe3#
- 1...Bg7
- 2.Qe4#
- 2.Qf2#
- 2.Qe3#
- 2.Qf4#
- 1...Bh8
- 2.Qe4#
- 2.Qf2#
- 2.Qe3#
- 2.Qf4#
- 1...d2
- 2.Qe4#
- 2.Qd5#
- 2.Qc3#
- 2.Qe3#
- 1...Rxg2!
- threat
- 1.Qxg2?
- threat
- 2.Qe4#
- 2.Qd5#
- 2.Qb2#
- 2.Qf2#
- 1...Bxb8
- 2.Qe4#
- 2.Qb2#
- 2.Qf2#
- 1...d2
- 2.Qe4#
- 2.Qd5#
- 2.Qxd2#
- 1...Rg3
- 2.Qe4#
- 2.Qd5#
- 2.Qb2#
- 1...Rg4
- 2.Qd5#
- 2.Qb2#
- 2.Qf2#
- 1...Rf5
- 2.Qe4#
- 2.Qd5#
- 2.Qb2#
- 1...Bh2
- 2.Qe4#
- 2.Qb2#
- 2.Qf2#
- 1...Bg3
- 2.Qe4#
- 2.Qb2#
- 1...Bf4
- 2.Qe4#
- 2.Qb2#
- 1...Bd6
- 2.Qe4#
- 2.Qb2#
- 2.Qf2#
- 1...Bf6
- 2.Qe4#
- 2.Qb2#
- 2.Qf2#
- 1...Bc7
- 2.Qe4#
- 2.Qb2#
- 2.Qf2#
- 1...Bg7
- 2.Qe4#
- 2.Qb2#
- 2.Qf2#
- 1...Bh8
- 2.Qe4#
- 2.Qb2#
- 2.Qf2#
- 1...Rxg2!
- threat
- 1.Qf4+?
- 1...Kd5
- 2.Se3#
- 2.Qc4#
- 1...Qe4
- 2.Qxe4#
- 1...Bxf4!
- 1...Kd5
- 1.Sb2?
- Keys
- 1.Qf7!
- threat
- 2.Qc4#
- 1...Qxc6+
- 2.Sxc6#
- 1...Ke4
- 2.Rc4#
- 1...Qd5
- 2.Qxd5#
- 2.Qf2#
- 1...Qa2
- 2.Qa7#
- 1...Qc2
- 2.Qd5#
- threat
- 1.Qf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- Q(a);N_GUARD::QAR1(C)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XS(A)::QAR1(C)
- Q(a);N_GUARD::QAR1(C)
- Q(a);::R1(E)
- R(f);::R1(E)
- Refutation
- Q(a);P_PINR(E),XQ(C)
- Try
- S(A);
- Threat
- S(A)
- Vars
- B(e);OGATE::R1(H)
- Refutation
- Q(a);P_PINR(E),XQ(C)
- Try
- S(A);
- Threat
- R1(E)
- Vars
- P(b);N_GUARD,S_CUTQ(a)::S(A)
- Q(a);N_GUARD::QAR1(C)
- Refutation
- Q(a);P_PINR(E),XQ(C)
- Try
- B(B);XQ(a)
- Threat
- DUALS(4)
- Refutation
- R(f);XB(B)
- Try
- Q(C);XQ(a)
- Threat
- DUALS(4)
- Refutation
- R(f);XQ(C)
- Try
- Q(C);CHECK,P_SPINR(E)
- Vars
- Q(a);N_GUARD,P_SPINQ(a)::QAR1(C),XQ(a)
- Refutation
- B(e);XQ(C)
- Try
- Actual
- Q(C);P_SPINR(E)
- Threat
- QAR1(C)
- Vars
- Q(a);CHECK,XR(E)::S(G),XQ(a)
- K(c);N_PINR(E),P-FLIGHT,P_SPINB(e),P_SPINQ(a)::R(E)
- Q(a);N_PINR(E)::QAB(C)
- Q(a);N_GUARD,N_PINR(E)::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).