MESON Chess Problem Database
Problem Display
PID: 74846 (b7/4p1QK/4p2B/RNp1Nk2/2p1r3/3np2n/5b2/1B3R2 w - - 0 1)
Piatesi, Antonio
Tijdschrift vd KNSB, 1938
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxe5
- 2.Qg6#
- 1...Sg1
- 2.Qg5#
- 1...Sf4
- 2.Qg5#
- 1...Sg5+
- 2.Qxg5#
- 1...Rxe5
- Tries
- 1.Sd4+?
- 1...cxd4
- 2.Qf8#
- 2.Qg6#
- 2.Qf7#
- 1...Rxd4!
- 1...cxd4
- 1.Sxd3?
- threat
- 2.Qg6#
- 1...Sg5+
- 2.Qxg5#
- 1...Rg4
- 2.Qe5#
- 1...Sf4
- 2.Qg5#
- 1...cxd3!
- threat
- 1.Sxc4?
- threat
- 2.Qg6#
- 1...Sg5+
- 2.Qxg5#
- 1...Rg4
- 2.Qe5#
- 1...Sdf4
- 2.Sd4#
- 1...Se5
- 2.Sxe3#
- 1...Shf4
- 2.Qg5#
- 1...Rxc4!
- threat
- 1.Sg4?
- threat
- 2.Qg6#
- 1...Sg5+
- 2.Qxg5#
- 1...Sdf4
- 2.Sd4#
- 1...Se5
- 2.Sxe3#
- 1...Shf4
- 2.Qg5#
- 1...Rxg4!
- threat
- 1.Sc6?
- threat
- 2.Sxe7#
- 2.Qg6#
- 1...Sg5+
- 2.Qxg5#
- 1...Rd4
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rg4
- 2.Qe5#
- 1...Rh4
- 2.Qg6#
- 1...Re5
- 2.Qg6#
- 1...e5
- 2.Qg6#
- 1...Sdf4
- 2.Sbd4#
- 2.Sxe7#
- 1...Se5
- 2.Sxe7#
- 1...Shf4
- 2.Sxe7#
- 2.Qg5#
- 1...Bxc6!
- threat
- 1.Sd7?
- threat
- 2.Qg6#
- 1...Sg5+
- 2.Qxg5#
- 1...Rg4
- 2.Qe5#
- 1...Sdf4
- 2.Sd4#
- 1...Shf4
- 2.Qg5#
- 1...Se5!
- threat
- 1.Sf7?
- threat
- 2.Qg6#
- 1...Sg5+
- 2.Qxg5#
- 1...Rg4
- 2.Qe5#
- 1...Sdf4
- 2.Sd4#
- 1...Shf4
- 2.Qg5#
- 1...Se5!
- threat
- 1.Sd4+?
- Keys
- 1.Sf3!
- threat
- 2.Qg6#
- 1...Sg5+
- 2.Qxg5#
- 1...Rg4
- 2.Qe5#
- 1...Sdf4
- 2.Sbd4#
- 1...Se5
- 2.Sh4#
- 1...Shf4
- 2.Qg5#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- R(f);P_SPINS(b),SBLOCK,XS(E)::QAB1(G)
- S(d);N_GUARD::QAR1(G)
- S(d);N_GUARD,N_SPINB(a)::QAR1(G)
- S(d);CHECK,N_GUARD::QAR1(G),XS(d)
- Tries
- Try
- S(D);CHECK
- Refutation
- R(f);P_SPINS(b),XS(D)
- Try
- S(E);XS(b)
- Threat
- QAB1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR1(G),XS(d)
- R(f);N_GUARD,SBLOCK::QAR1(G)
- S(d);N_GUARD,N_SPINB(a)::QAR1(G)
- Refutation
- P(e);XS(E)
- Try
- S(E);XP(e)
- Threat
- QAB1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR1(G),XS(d)
- R(f);N_GUARD,P_SPINS(b),SBLOCK::QAR1(G)
- S(b);N_SPINB(a),P_SPINR(f)::S(D)
- S(b);P_SPINR(f)::S(E),XP(c)
- S(d);N_GUARD,N_SPINB(a)::QAR1(G)
- Refutation
- R(f);P_SPINS(b),XS(E)
- Try
- S(E);
- Threat
- QAB1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR1(G),XS(d)
- S(b);N_SPINB(a),P_SPINR(f)::S(D)
- S(b);P_SPINR(f)::S(E),XP(c)
- S(d);N_GUARD,N_SPINB(a)::QAR1(G)
- Refutation
- R(f);P_SPINS(b),XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::QAR1(G),XS(d)
- R(f);P_SPINS(b)::QAB1(G)
- R(f);N_SPINB(a),P_SPINS(b)::QAB1(G)
- R(f);N_GUARD,P_SPINS(b),SBLOCK::QAR1(G)
- R(f);P_PINB(F),P_SPINS(b)::QAB1(G)
- P(i);::QAB1(G)
- S(b);P_SPINR(f)::S(E),XP(j)
- Refutation
- B(k);XS(E)
- Try
- S(E);
- Threat
- QAB1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR1(G),XS(d)
- R(f);N_GUARD,P_SPINS(b),SBLOCK::QAR1(G)
- S(b);N_SPINB(a),P_SPINR(f)::S(D)
- S(d);N_GUARD,N_SPINB(a)::QAR1(G)
- Refutation
- S(b);P_SPINR(f)
- Try
- S(E);
- Threat
- QAB1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR1(G),XS(d)
- R(f);N_GUARD,P_SPINS(b),SBLOCK::QAR1(G)
- S(b);N_SPINB(a),P_SPINR(f)::S(D)
- S(d);N_GUARD,N_SPINB(a)::QAR1(G)
- Refutation
- S(b);P_SPINR(f)
- Try
- Actual
- S(E);N_PINB(a)
- Threat
- QAB1(G)
- Vars
- S(d);CHECK,N_GUARD::QAR1(G),XS(d)
- R(f);N_GUARD,P_SPINS(b),SBLOCK::QAR1(G)
- S(b);P_SPINR(f)::S(D)
- S(b);P_SPINR(f)::S(E)
- S(d);N_GUARD::QAR1(G)
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).