MESON Chess Problem Database
Problem Display
PID: 179097 (B1b3n1/2N1NpQ1/7n/Kp1Pr3/pp1rk3/q2pPp2/3P4/B7 w - - 0 1)
Eerkes, Allard Pieter
Magasinet, 1935
#2
9 + 13
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Qxe5#
- 1...Rdxd5
- 2.Qxe5#
- 1...Rexd5
- 2.Qxd4#
- 1...Rf5
- 2.Qxd4#
- 1...Rg5
- 2.Qxd4#
- 1...Rh5
- 2.Qxd4#
- 1...Re6
- 2.Qxd4#
- 1...Sf5
- 2.Qg4#
- 1...f2
- 2.Qg2#
- 1...Rc4
- Tries
- 1.Se8?
- threat
- 2.Sd6#
- 1...f2
- 2.Qg2#
- 1...Re6
- 2.Qxd4#
- 1...Sf5
- 2.Qg4#
- 1...b3!
- threat
- 1.d6+?
- 1...Rdd5
- 2.Qxe5#
- 1...Red5
- 2.Qxd4#
- 1...Bb7!
- 1...Rdd5
- 1.Se8?
- Keys
- 1.Sxb5!
- threat
- 2.Sd6#
- 1...Rdxd5
- 2.Qxe5#
- 1...Rexd5
- 2.Qxd4#
- 1...f2
- 2.Qg2#
- 1...Re6
- 2.Qxd4#
- 1...Sf5
- 2.Qg4#
- 1...b3
- 2.Sc3#
- threat
- 1.Sxb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(f);::QAR1(H),XR(i)
- R(f);P_SPINR(f),XP(E)::QAR1(H),XR(i)
- R(i);OGATE,P_SPINR(i),XP(E)::QAR1(H),XR(f)
- R(i);OGATE::QAR1(H),XR(f)
- S(j);N_GUARD,S_CUTB(l)::QAR2(H)
- P(c);OGATEB::QAB(H)
- Tries
- Try
- S(F);
- Threat
- S(F)
- Vars
- P(c);OGATEB::QAB(H)
- R(i);OGATE::QAR1(H),XR(f)
- S(j);N_GUARD,S_CUTB(l)::QAR2(H)
- Refutation
- P(e);
- Try
- P(E);CHECK
- Vars
- R(f);P_SPINR(f)::QAR1(H),XR(i)
- R(i);OGATE,P_SPINR(i)::QAR1(H),XR(f)
- Refutation
- B(l);P_SPINB(l)
- Try
- Actual
- S(F);XP(h)
- Threat
- S(F)
- Vars
- R(f);P_PINS(F),P_SPINR(f),XP(E)::QAR1(H),XR(i)
- R(i);OGATE,P_PINS(F),P_SPINR(i),XP(E)::QAR1(H),XR(f)
- P(c);OGATEB::QAB(H)
- R(i);OGATE::QAR1(H),XR(f)
- S(j);N_GUARD,S_CUTB(l)::QAR2(H)
- P(e);N_GUARD,S_CUTQ(a)::S(F)
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).