MESON Chess Problem Database
Problem Display
PID: 235722 (8/8/1p2B3/1R5K/8/5n2/8/k3b2Q w - - 0 1)
Speckmann, Werner
Pat a Mat, 1989
#2
4 + 4
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Qa8#
- 1...Sh2
- 2.Qxe1#
- 1...Sd4
- 2.Qxe1#
- 1...Sh4
- 2.Qxe1#
- 1...Se5
- 2.Qxe1#
- 1...Sg5
- 2.Qxe1#
- 1...Sd2
- Tries
- 1.Kh6?
- 1...Sd2
- 2.Qa8#
- 1...Sh2
- 2.Qxe1#
- 1...Sd4
- 2.Qxe1#
- 1...Sh4
- 2.Qxe1#
- 1...Se5
- 2.Qxe1#
- 1...Sg5
- 2.Qxe1#
- 1...Sg1!
- 1...Sd2
- 1.Bc4?
- 1...Sd2
- 2.Qa8#
- 1...Sh2
- 2.Qxe1#
- 1...Sd4
- 2.Qxe1#
- 1...Sh4
- 2.Qxe1#
- 1...Se5
- 2.Qxe1#
- 1...Sg5
- 2.Qxe1#
- 1...Sg1!
- 1...Sd2
- 1.Bf7?
- 1...Sd2
- 2.Qa8#
- 1...Sh2
- 2.Qxe1#
- 1...Sd4
- 2.Qxe1#
- 1...Sh4
- 2.Qxe1#
- 1...Se5
- 2.Qxe1#
- 1...Sg5
- 2.Qxe1#
- 1...Sg1!
- 1...Sd2
- 1.Bg8?
- 1...Sd2
- 2.Qa8#
- 1...Sh2
- 2.Qxe1#
- 1...Sd4
- 2.Qxe1#
- 1...Sh4
- 2.Qxe1#
- 1...Se5
- 2.Qxe1#
- 1...Sg5
- 2.Qxe1#
- 1...Sg1!
- 1...Sd2
- 1.Rb4?
- 1...Sg1
- 2.Qa8#
- 1...Sd2
- 2.Qa8#
- 1...Sh2
- 2.Qa8#
- 2.Qxe1#
- 1...Sd4
- 2.Qa8#
- 2.Qxe1#
- 1...Sh4
- 2.Qa8#
- 2.Qxe1#
- 1...Se5
- 2.Qa8#
- 2.Qxe1#
- 1...Sg5
- 2.Qa8#
- 2.Qxe1#
- 1...b5!
- 1...Sg1
- 1.Rxb6?
- 1...Sd2
- 2.Qa8#
- 1...Sh2
- 2.Qxe1#
- 1...Sd4
- 2.Qxe1#
- 1...Sh4
- 2.Qxe1#
- 1...Se5
- 2.Qxe1#
- 1...Sg5
- 2.Qxe1#
- 1...Sg1!
- 1...Sd2
- 1.Qxf3?
- threat
- 2.Qd1#
- 2.Qa3#
- 1...Bd2
- 2.Qa3#
- 1...Bc3
- 2.Qd1#
- 2.Qxc3#
- 1...Bb4!
- threat
- 1.Qg1?
- 1...Sd2
- 2.Qd4#
- 2.Qg7#
- 1...Sh2
- 2.Qxe1#
- 1...Sd4
- 2.Qxe1#
- 1...Sh4
- 2.Qxe1#
- 1...Se5
- 2.Qxe1#
- 1...Sg5
- 2.Qxe1#
- 1...Sxg1!
- 1...Sd2
- 1.Kh6?
- Keys
- 1.Qf1!
- 1...Sg1
- 2.Qxe1#
- 1...Sd2
- 2.Qf6#
- 1...Sh2
- 2.Qxe1#
- 1...Sd4
- 2.Qxe1#
- 1...Sh4
- 2.Qxe1#
- 1...Se5
- 2.Qxe1#
- 1...Sg5
- 2.Qxe1#
- 1...Sg1
- 1.Qf1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(c);OGATE::QAB(A)
- S(c);N_GUARD::QAR(A),XB(b)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- S(c);OGATE::QAB(A)
- S(c);N_GUARD::QAR(A),XB(b)
- Refutation
- S(c);N_SPINB(b)
- Try
- B(D);
- Vars
- S(c);OGATE::QAB(A)
- S(c);N_GUARD::QAR(A),XB(b)
- Refutation
- S(c);N_SPINB(b)
- Try
- B(D);
- Vars
- S(c);OGATE::QAB(A)
- S(c);N_GUARD::QAR(A),XB(b)
- Refutation
- S(c);N_SPINB(b)
- Try
- B(D);
- Vars
- S(c);OGATE::QAB(A)
- S(c);N_GUARD::QAR(A),XB(b)
- Refutation
- S(c);N_SPINB(b)
- Try
- R(B);
- Vars
- S(c);N_SPINB(b),OGATE::QAB(A)
- S(c);OGATE::QAB(A)
- Refutation
- P(d);
- Try
- R(B);XP(d)
- Vars
- S(c);OGATE::QAB(A)
- S(c);N_GUARD::QAR(A),XB(b)
- Refutation
- S(c);N_SPINB(b)
- Try
- Q(A);N_PINB(b),XS(c)
- Threat
- DUALS(2)
- Vars
- B(b);::QAR2(A)
- Refutation
- B(b);
- Try
- Q(A);
- Vars
- S(c);N_GUARD::QAR(A),XB(b)
- Refutation
- S(c);N_SPINB(b),XQ(A)
- Try
- Actual
- Q(A);
- Vars
- S(c);N_GUARD::QAR(A),XB(b)
- S(c);OGATE::QAB(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).