MESON Chess Problem Database
Problem Display
PID: 72733 (4Q3/Knp2pp1/3P1k2/1bN1r1R1/2pNr2P/8/BB3b1q/5R2 w - - 0 1)
Vreughenhil, D
Tijdschrift vd KNSB, 1936
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Qxe5#
- 1...Rd5
- 2.Sxe4#
- 1...Rf5
- 2.Sxe4#
- 1...Ba6
- 2.Sd7#
- 1...Bd7
- 2.Sxd7#
- 1...c3
- 2.Qxf7#
- 1...c6
- 2.Sd7#
- 1...g6
- 2.Qh8#
- 1...Rf4
- Tries
- 1.Sxb5?
- threat
- 2.Qe7#
- 1...Sxd6
- 2.Qd8#
- 1...g6
- 2.Qh8#
- 1...Rd4
- 2.Sd7#
- 1...c3
- 2.Qxf7#
- 1...cxd6!
- threat
- 1.Rg6+?
- 1...fxg6
- 2.Qf8#
- 1...Kxg6!
- 1...fxg6
- 1.Qd8+?
- 1...Re7
- 2.Sxe4#
- 1...Sxd8!
- 1...Re7
- 1.Sxb5?
- Keys
- 1.Sc6!
- threat
- 2.Qe7#
- 1...g6
- 2.Qh8#
- 1...Rd4
- 2.Sd7#
- 1...c3
- 2.Qxf7#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(d);N_GUARD,N_SPINB(a),S_CUTQ(b)::QAB1(J),XR(f)
- R(f);N_GUARD::S(F),XR(d)
- R(f);N_GUARD,N_SPINB(a)::S(F),XR(d)
- B(e);N_GUARD::S(F)
- B(e);N_GUARD::S(F),XB(e)
- P(c);::QAR1(J),XP(j)
- P(i);S_CUTB(e)::S(F)
- P(k);OGATEB::QAB(J)
- Tries
- Try
- S(D);P_PINR(f),P_SPINS(F),XB(e)
- Threat
- QAB1(J)
- Vars
- S(h);N_GUARD,XP(H)::QAB(J)
- P(k);OGATEB::QAB(J)
- R(d);N_PINS(F),N_SPINR(f)::S(F)
- P(c);N_SPINR(f)::QAR1(J),XP(j)
- Refutation
- P(i);XP(H)
- Try
- R(G);CHECK
- Vars
- P(j);SBLOCK,XR(G)::QAR2(J)
- Refutation
- K(g);N_SPINB(a),P-FLIGHT,P_SPINP(j),XR(G)
- Try
- Q(J);CHECK
- Vars
- R(f);P_SPINR(f)::S(F),XR(d)
- Refutation
- S(h);XQ(J)
- Try
- Actual
- S(D);P_PINR(f),P_SPINS(F)
- Threat
- QAB1(J)
- Vars
- P(k);OGATEB::QAB(J)
- R(d);N_PINS(F),N_SPINR(f)::S(F)
- P(c);N_SPINR(f)::QAR1(J),XP(j)
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).