MESON Chess Problem Database
Problem Display
PID: 234915 (6Bn/2R2qB1/7K/2NkP3/Q4pNp/2p4r/3b2b1/3R1r2 w - - 0 1)
Haring, Jacobus
Arbejder-Skak, 1958
#2
9 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe6+
- 2.Bxe6#
- 1...Rff3
- 2.Qe4#
- 1...Rhf3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Sg6
- 2.Bxf7#
- 1...f3+
- 2.Se3#
- 1...Qe6+
- Tries
- 1.Se4?
- threat
- 2.Qc4#
- 1...Qe6+
- 2.Sef6#
- 1...Ke6
- 2.Qd7#
- 1...f3+!
- threat
- 1.Bf8?
- threat
- 2.Rd7#
- 1...Qe6+
- 2.Bxe6#
- 1...f3+!
- threat
- 1.Bxh8?
- threat
- 2.Bxf7#
- 1...Qe6+
- 2.Bxe6#
- 1...f3+
- 2.Se3#
- 1...Qxg8!
- threat
- 1.Rxd2+?
- 1...Rd3
- 2.Rxd3#
- 1...cxd2!
- 1...Rd3
- 1.Se4?
- Keys
- 1.Sd3!
- threat
- 2.Qc4#
- 1...Qe6+
- 2.Sf6#
- 1...f3+
- 2.Sf4#
- 1...Ke6
- 2.Qd7#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- Q(i);CHECK,OGATE::B(I),XQ(i)
- R(a);S_CUTB(c)::QAB1(B)
- R(e);S_CUTB(c)::QAB1(B)
- B(c);N_GUARD::QAB1(B),XB(c)
- S(j);N_GUARD::B(I),XQ(i)
- P(f);CHECK,N_GUARD,S_CUTR(e)::S(C)
- Tries
- Try
- S(D);
- Threat
- QAB1(B)
- Vars
- Q(i);CHECK::S(D)
- K(h);N_SPINB(b),S_FLIGHT::QAB1(B)
- Refutation
- P(f);CHECK
- Try
- B(H);
- Threat
- R(G)
- Vars
- Q(i);CHECK,OGATE::B(I),XQ(i)
- Refutation
- P(f);CHECK
- Try
- B(H);XS(j)
- Threat
- B(I),XQ(i)
- Vars
- Q(i);CHECK,OGATE::B(I),XQ(i)
- P(f);CHECK,N_GUARD,S_CUTR(e)::S(C)
- Refutation
- Q(i);N_SPINQ(i),XB(I)
- Try
- R(A);CHECK,XB(b)
- Vars
- R(e);N_GUARD,P_SPINR(e)::R(A),XR(e)
- Refutation
- P(d);XR(A)
- Try
- Actual
- S(D);N_PINB(b)
- Threat
- QAB1(B)
- Vars
- Q(i);CHECK::S(C)
- P(f);CHECK,S_CUTR(a)::S(D)
- K(h);S_FLIGHT::QAB1(B)
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).