MESON Chess Problem Database
Problem Display
PID: 176456 (8/p1B2p2/1P6/RPp2P1p/1Pkp4/2PRp3/4PNQ1/2KBN3 w - - 0 1)
Heinz, Rainer
Schach-Echo, 1981
#2
14 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...dxc3
- 2.Qe4#
- 1...cxb4
- 2.Qc6#
- 1...f6
- 2.Qg8#
- 1...dxc3
- Tries
- 1.Kb2?
- threat
- 2.Bb3#
- 1...cxb4
- 2.Qc6#
- 1...dxc3+!
- threat
- 1.Sc2?
- threat
- 2.Sa3#
- 1...Kb3
- 2.Sxe3#
- 1...dxc3
- 2.Qd5#
- 1...cxb4!
- threat
- 1.Se4?
- threat
- 2.Sd6#
- 1...Kd5
- 2.Sd2#
- 1...cxb4
- 2.Rxd4#
- 1...dxc3!
- threat
- 1.Rxd4+?
- 1...cxd4
- 2.Qc6#
- 1...Kxc3!
- 1...cxd4
- 1.Kb2?
- Keys
- 1.Qg7!
- threat
- 2.Qxf7#
- 1...Kd5
- 2.Qxf7#
- 1...dxc3
- 2.Qxc3#
- 1...cxb4
- 2.Qxd4#
- 1...f6
- 2.Qf7#
- 2.Qg8#
- threat
- 1.Qg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- P(c);OGATEB,XP(G)::QAR2(F)
- P(d);OGATEB,XP(I)::QAR2(F)
- P(g);OGATEB::QAB(F)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- B(B)
- Vars
- P(d);OGATEB,XP(I)::QAR2(F)
- Refutation
- P(c);CHECK,XP(G)
- Try
- S(C);
- Threat
- S(C)
- Vars
- K(b);S_FLIGHT::B(B)+S(C),XP(a)
- P(c);XP(G)::QAB1(F)
- Refutation
- P(d);XP(I)
- Try
- S(E);
- Threat
- S(E)
- Vars
- K(b);P_SPINP(c),S_FLIGHT::QAB(F)+S(E)
- P(d);N_GUARD,XP(I)::R1(H),XP(c)
- Refutation
- P(c);XP(G)
- Try
- R(H);CHECK,XP(c)
- Vars
- P(d);XR(H)::QAR2(F)
- Refutation
- K(b);P-FLIGHT,XP(G)
- Try
- Actual
- Q(F);
- Threat
- QAB(F),XP(g)
- Vars
- K(b);P_SPINP(c),S_FLIGHT::QAB(F),XP(g)
- P(c);OGATE,XP(G)::QAR1(F),XP(c)
- P(d);N_GUARD,XP(I)::QAR1(F),XP(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).