MESON Chess Problem Database
Problem Display
PID: 73179 (3B4/p1N2b2/Rppkp1p1/R3N1P1/3nPP2/2pQ1n2/2P5/7K w - - 0 1)
Herpai, S Ferenc
Magyar Sakkelet, 1955
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Be8
- 2.Sxe8#
- 1...Bg8
- 2.Se8#
- 1...Se1
- 2.Qxd4#
- 1...Sg1
- 2.Qxd4#
- 1...Sd2
- 2.Qxd4#
- 1...Sh2
- 2.Qxd4#
- 1...Sh4
- 2.Qxd4#
- 1...Sxe5
- 2.Qxd4#
- 1...Sxg5
- 2.Qxd4#
- 1...bxa5
- 2.Rxc6#
- 1...b5
- 2.Rxc6#
- 1...c5
- 2.Sb5#
- 1...Be8
- Tries
- 1.Sb5+?
- 1...Kc5
- 2.Be7#
- 2.Qc4#
- 2.Qxc3#
- 1...cxb5!
- 1...Kc5
- 1.Rc5?
- threat
- 2.Rxc6#
- 1...Kxc5
- 2.Be7#
- 1...Sxe5
- 2.Qxd4#
- 1...bxc5
- 2.Sb5#
- 2.Rxc6#
- 1...Be8!
- threat
- 1.Rxb6?
- threat
- 2.Rxc6#
- 1...Sxe5
- 2.Qxd4#
- 1...Be8
- 2.Sxe8#
- 1...axb6!
- threat
- 1.Qc4?
- 1...Sxe5
- 2.Qxd4#
- 1...Sxg5
- 2.Qxd4#
- 1...Sxc2
- 2.Qxc6#
- 1...Be8
- 2.Sxe8#
- 1...Bg8
- 2.Se8#
- 1...Se1
- 2.Qxd4#
- 1...Sg1
- 2.Qxd4#
- 1...Sd2
- 2.Qxd4#
- 1...Sh2
- 2.Qxd4#
- 1...Sh4
- 2.Qxd4#
- 1...Se2
- 2.Qxc6#
- 1...Sb3
- 2.Qxc6#
- 1...Sb5
- 2.Qxc6#
- 1...Sf5
- 2.Qxc6#
- 1...b5
- 2.Qb4#
- 1...c5
- 2.Qxc5#
- 1...bxa5!
- 1...Sxe5
- 1.Qd1?
- 1...Sxe5
- 2.Qxd4#
- 1...Sxg5
- 2.Qxd4#
- 1...bxa5
- 2.Rxc6#
- 1...b5
- 2.Rxc6#
- 1...Be8
- 2.Sxe8#
- 1...Bg8
- 2.Se8#
- 1...Se1
- 2.Qxd4#
- 1...Sg1
- 2.Qxd4#
- 1...Sh2
- 2.Qxd4#
- 1...Sh4
- 2.Qxd4#
- 1...c5
- 2.Sb5#
- 1...Sd2!
- 1...Sxe5
- 1.Sb5+?
- Keys
- 1.Qxc3!
- 1...Sxe5
- 2.Qxd4#
- 1...Sxg5
- 2.Qxd4#
- 1...Sxc2
- 2.Qxc6#
- 1...bxa5
- 2.Qa3#
- 1...Be8
- 2.Sxe8#
- 1...Bg8
- 2.Se8#
- 1...Se1
- 2.Qxd4#
- 1...Sg1
- 2.Qxd4#
- 1...Sd2
- 2.Qxd4#
- 1...Sh2
- 2.Qxd4#
- 1...Sh4
- 2.Qxd4#
- 1...Se2
- 2.Qxc6#
- 1...Sb3
- 2.Qxc6#
- 1...Sb5
- 2.Qxc6#
- 1...Sf5
- 2.Qxc6#
- 1...b5
- 2.Qb4#
- 1...c5
- 2.Qxc5#
- 1...Sxe5
- 1.Qxc3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- B(j);N_GUARD::S(J),XB(j)
- B(j);N_GUARD::S(J)
- S(b);N_GUARD::QAR2(C),XS(c)
- S(b);N_GUARD,XS(G)::QAR2(C),XS(c)
- S(b);N_GUARD,XP(H)::QAR2(C),XS(c)
- P(d);OGATE,P_SPINP(e),XR(F)::R1(I),XP(e)
- P(d);OGATE,P_SPINP(e)::R1(I),XP(e)
- P(e);N_GUARD,P_SPINP(d),SBLOCK::S(J)
- Tries
- Try
- S(J);CHECK
- Refutation
- P(e);P_SPINP(d),XS(J)
- Try
- R(F);
- Threat
- R1(F),XP(e)
- Vars
- K(f);N_SPINS(c),S_FLIGHT,XR(F)::B(K)
- S(b);N_GUARD,XS(G)::QAR2(C),XS(c)
- Refutation
- B(j);
- Try
- R(I);P_PINP(e),XP(d)
- Threat
- R1(I),XP(e)
- Vars
- S(b);N_GUARD,XS(G)::QAR2(C),XS(c)
- B(j);N_GUARD::S(J),XB(j)
- Refutation
- P(i);N_SPINP(e),XR(I)
- Try
- Q(C);N_PINS(c)
- Vars
- S(b);N_GUARD,XS(G)::QAR2(C),XS(c)
- S(b);N_GUARD,XP(H)::QAR2(C),XS(c)
- S(c);N_GUARD,XP(B)::QAR1(C),XP(e)
- B(j);N_GUARD::S(J),XB(j)
- B(j);N_GUARD::S(J)
- S(b);N_GUARD::QAR2(C),XS(c)
- S(c);N_GUARD::QAR1(C),XP(e)
- P(d);P_SPINP(e)::QAB(C)
- P(e);P_SPINP(d)::QAB1(C),XP(e)
- Refutation
- P(d);P_SPINP(e),XR(F)
- Try
- Q(C);
- Vars
- S(b);N_GUARD,XS(G)::QAR2(C),XS(c)
- S(b);N_GUARD,XP(H)::QAR2(C),XS(c)
- P(d);OGATE,P_SPINP(e),XR(F)::R1(I),XP(e)
- P(d);OGATE,P_SPINP(e)::R1(I),XP(e)
- B(j);N_GUARD::S(J),XB(j)
- B(j);N_GUARD::S(J)
- S(b);N_GUARD::QAR2(C),XS(c)
- P(e);N_GUARD,P_SPINP(d),SBLOCK::S(J)
- Refutation
- S(b);N_SPINS(c)
- Try
- Actual
- Q(C);N_PINS(c),XP(a)
- Vars
- S(b);N_GUARD,XS(G)::QAR2(C),XS(c)
- S(b);N_GUARD,XP(H)::QAR2(C),XS(c)
- S(c);N_GUARD,XP(B)::QAR1(C),XP(e)
- P(d);P_SPINP(e),XR(F)::QAB(C)
- B(j);N_GUARD::S(J),XB(j)
- B(j);N_GUARD::S(J)
- S(b);N_GUARD::QAR2(C),XS(c)
- S(c);N_GUARD::QAR1(C),XP(e)
- P(d);P_SPINP(e)::QAB(C)
- P(e);P_SPINP(d)::QAB1(C),XP(e)
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).