MESON Chess Problem Database
Problem Display
PID: 264975 (Kn1n1N2/1B4B1/1p6/1Pk3br/P1NR4/P2p1rp1/6b1/6Q1 w - - 0 1)
Friedberg, Uly
Vatarescu, Paul
Probleemblad, 1949
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Rxf4#
- 1...Rf5
- 2.Rf4#
- 1...Rf6
- 2.Rf4#
- 1...Rf7
- 2.Rf4#
- 1...Rxf8
- 2.Rf4#
- 1...Sa6
- 2.Sd7#
- 1...Sbc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sdc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...Sxb7
- 2.Se6#
- 1...Sf7
- 2.Se6#
- 1...Rf4
- Tries
- 1.Sd2?
- threat
- 2.Sb3#
- 2.Se4#
- 2.Rd5#
- 2.Qc1#
- 1...Rxf8
- 2.Sb3#
- 2.Rd5#
- 2.Qc1#
- 1...Sxb7
- 2.Sb3#
- 2.Se4#
- 2.Se6#
- 2.Qc1#
- 1...Rf1
- 2.Sb3#
- 2.Rd5#
- 1...Rf2
- 2.Sb3#
- 2.Qc1#
- 1...Re3
- 2.Sb3#
- 2.Qc1#
- 1...Rf4
- 2.Sb3#
- 2.Rd5#
- 2.Qc1#
- 1...Rf5
- 2.Sb3#
- 2.Rd5#
- 2.Qc1#
- 1...Rf6
- 2.Sb3#
- 2.Rd5#
- 1...Rf7
- 2.Sb3#
- 2.Rd5#
- 2.Qc1#
- 1...Rh1
- 2.Sb3#
- 2.Se4#
- 2.Rd5#
- 1...Rh4
- 2.Sb3#
- 2.Rd5#
- 2.Qc1#
- 1...Bf1
- 2.Sb3#
- 2.Se4#
- 2.Rd5#
- 1...Be3
- 2.Sb3#
- 2.Se4#
- 2.Qc1#
- 1...Bf6
- 2.Sb3#
- 2.Se4#
- 2.Rd5#
- 1...Sbc6
- 2.Sb3#
- 2.Se4#
- 2.Sd7#
- 2.Qc1#
- 1...Sdc6
- 2.Sb3#
- 2.Se4#
- 2.Se6#
- 2.Qc1#
- 1...Bxd2!
- threat
- 1.Sa5?
- threat
- 2.Sb3#
- 2.Rd5#
- 1...Sxb7
- 2.Sb3#
- 2.Sxb7#
- 2.Se6#
- 1...Rf2
- 2.Sb3#
- 1...Re3
- 2.Sb3#
- 2.Qc1#
- 1...Be3
- 2.Sb3#
- 1...Sbc6
- 2.Sb3#
- 2.Sd7#
- 1...Sdc6
- 2.Sb3#
- 2.Se6#
- 1...d2
- 2.Rd5#
- 1...bxa5!
- threat
- 1.Se5?
- threat
- 2.Rd5#
- 1...Sxb7
- 2.Se6#
- 1...Rf2
- 2.Sxd3#
- 1...Sbc6
- 2.Sed7#
- 2.Sfd7#
- 1...Sdc6
- 2.Se6#
- 1...Re3!
- threat
- 1.Sd6?
- threat
- 2.Se4#
- 2.Rd5#
- 1...Rxf8
- 2.Rd5#
- 1...Sxb7
- 2.Se4#
- 2.Sxb7#
- 2.Se6#
- 1...Rf1
- 2.Rd5#
- 1...Re3
- 2.Qc1#
- 1...Rf4
- 2.Rd5#
- 2.Qc1#
- 1...Rf5
- 2.Rd5#
- 1...Rf6
- 2.Rd5#
- 1...Rf7
- 2.Rd5#
- 1...Rh4
- 2.Rd5#
- 1...Be3
- 2.Se4#
- 1...Sbc6
- 2.Se4#
- 2.Sd7#
- 1...Sdc6
- 2.Se4#
- 2.Se6#
- 1...Rf2!
- threat
- 1.Rf4+?
- 1...Re3
- 2.Qxe3#
- 1...Rf2!
- 1...Re3
- 1.Sd2?
- Keys
- 1.Sb2!
- threat
- 2.Rd5#
- 1...Sxb7
- 2.Se6#
- 1...Rf2
- 2.Sxd3#
- 1...Re3
- 2.Qc1#
- 1...Be3
- 2.Sxd3#
- 1...Sbc6
- 2.Sd7#
- 1...Sdc6
- 2.Se6#
- threat
- 1.Sb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- R(c);N_GUARD,P_PINB(G)::QAB(A)+R(E),XR(c)
- R(c);N_GUARD,P_PINB(G)::QAB(A)+R(E)
- R(c);N_GUARD,P_PINB(G),XS(J)::QAB(A)+R(E)
- S(i);N_GUARD::S(J)
- S(i);N_GUARD::S(J),XS(i)
- S(j);N_GUARD::S(J)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD,XB(G)::S(J)
- Tries
- Try
- S(D);
- Threat
- DUALS(4)
- Refutation
- B(f);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(c);P_PINB(G)::S(D)
- B(f);::S(D)
- P(b);::QAB(A)+R(E),DCHECK
- Refutation
- P(h);XS(D)
- Try
- S(D);
- Threat
- QAB(A)+R(E),DCHECK
- Vars
- S(j);N_GUARD,XB(G)::S(J)
- R(c);N_GUARD,P_PINB(G)::S(D),XP(b)
- S(j);N_GUARD::S(J)
- Refutation
- R(c);P_PINB(G)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(c);P_PINB(G),XS(J)::QAB(A)+R(E),DCHECK
- R(c);P_PINB(G)::QAB(A)+R(E),DCHECK
- R(c);P_PINB(G),S_CUTB(f)::QAR(A)
- R(g);::QAB(A)+R(E),DCHECK
- B(f);::S(D)
- Refutation
- R(c);P_PINB(G)
- Try
- R(E);CHECK
- Vars
- R(c);N_GUARD,P_PINB(G),P_SPINR(c)::QAB(A),XR(c)
- Refutation
- R(c);P_PINB(G),P_SPINR(c)
- Try
- Actual
- S(D);
- Threat
- QAB(A)+R(E),DCHECK
- Vars
- S(j);N_GUARD,XB(G)::S(J)
- R(c);N_GUARD,P_PINB(G)::S(D),XP(b)
- R(c);P_PINB(G),S_CUTB(f)::QAR(A)
- B(f);S_CUTR(c)::S(D),XP(b)
- S(i);N_GUARD::S(J)
- S(j);N_GUARD::S(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).