MESON Chess Problem Database
Problem Display
PID: 57801 (3nQ1B1/2p2r2/1b6/4p3/2n1kP1N/1R3pr1/K3NP1B/3R4 w - - 0 1)
Spiess, Jean-Yves
Europe Echecs, 1982
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sc3#
- 1...Rg2
- 2.Sc3#
- 1...Rh3
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rg5
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rgg7
- 2.Sc3#
- 1...Rxg8
- 2.Sc3#
- 1...Rxf4
- 2.Sc3#
- 2.Sxg3#
- 2.Bd5#
- 1...Rf5
- 2.Bd5#
- 1...Rf6
- 2.Bd5#
- 1...Re7
- 2.Bd5#
- 1...Rfg7
- 2.Bd5#
- 1...Rh7
- 2.Bd5#
- 1...Rf8
- 2.Bd5#
- 1...Bd4
- 2.Rxd4#
- 1...Ba5
- 2.Rd4#
- 1...Sb2
- 2.Qxe5#
- 1...Sd2
- 2.Qxe5#
- 1...Sa3
- 2.Qxe5#
- 1...Se3
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sd6
- 2.Qxe5#
- 1...Sc6
- 2.Qxc6#
- 1...Se6
- 2.Qc6#
- 1...Sb7
- 2.Qc6#
- 1...Rg1
- Tries
- 1.Bxg3?
- threat
- 2.Sc3#
- 1...fxe2
- 2.f3#
- 1...Bd4
- 2.Rxd4#
- 1...Sd2
- 2.Qxe5#
- 1...Ba5
- 2.Rd4#
- 1...Bxf2!
- threat
- 1.Bh7+?
- 1...Rg6
- 2.Sc3#
- 1...Rf5
- 2.Bxf5#
- 1...Rxh7!
- 1...Rg6
- 1.Re3+?
- 1...Sxe3
- 2.Qxe5#
- 1...Bxe3!
- 1...Sxe3
- 1.Rxf3?
- threat
- 2.Sc3#
- 2.Sxg3#
- 1...Rxg8
- 2.Sc3#
- 1...Bxf2
- 2.Sc3#
- 1...Bd4
- 2.Rxd4#
- 1...Sd2
- 2.Qxe5#
- 1...Rg1
- 2.Sc3#
- 1...Rg2
- 2.Sc3#
- 1...Rh3
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rg5
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rgg7
- 2.Sc3#
- 1...Rfg7
- 2.Sc3#
- 2.Bd5#
- 1...Ba5
- 2.Sxg3#
- 2.Rd4#
- 1...Rxf3!
- threat
- 1.Qxf7?
- threat
- 2.Sc3#
- 2.Sxg3#
- 2.Qd5#
- 2.Qf5#
- 1...Rxg8
- 2.Sc3#
- 2.Qd5#
- 2.Qf5#
- 1...Bxf2
- 2.Qd5#
- 2.Qf5#
- 1...fxe2
- 2.Qf5#
- 1...exf4
- 2.Qd5#
- 2.Qxf4#
- 2.Qf5#
- 1...Rg1
- 2.Sc3#
- 2.Qd5#
- 2.Qf5#
- 1...Rg2
- 2.Sc3#
- 2.Qd5#
- 2.Qf5#
- 1...Rh3
- 2.Sc3#
- 2.Bh7#
- 2.Qd5#
- 2.Qg6#
- 2.Qf5#
- 2.Qh7#
- 1...Rg4
- 2.Sc3#
- 2.Qd5#
- 2.Qf5#
- 1...Rg5
- 2.Sc3#
- 2.Qd5#
- 1...Rg6
- 2.Sc3#
- 2.Qd5#
- 2.Qxg6#
- 2.Qf5#
- 1...Rg7
- 2.Sc3#
- 2.Qd5#
- 2.Qf5#
- 1...Bd4
- 2.Sxg3#
- 2.Qd5#
- 2.Qf5#
- 1...Ba5
- 2.Sxg3#
- 2.Qxc4#
- 2.Qd5#
- 2.Qf5#
- 1...Sd2
- 2.Qd5#
- 2.Qf5#
- 1...Se3
- 2.Sc3#
- 2.Sxg3#
- 1...Sd6
- 2.Sc3#
- 2.Sxg3#
- 2.Qd5#
- 1...Se6
- 2.Sc3#
- 2.Sxg3#
- 2.Qf5#
- 1...c6
- 2.Sc3#
- 2.Sxg3#
- 2.Qf5#
- 1...Sxf7!
- threat
- 1.Bxg3?
- Keys
- 1.Rb4!
- threat
- 2.Qxe5#
- 1...Rxf4
- 2.Sc3#
- 2.Sxg3#
- 2.Bd5#
- 1...Bd4
- 2.Rxd4#
- 1...Rg5
- 2.Sc3#
- 1...Rf5
- 2.Bd5#
- 1...Re7
- 2.Bd5#
- 1...Sc6
- 2.Qxc6#
- 1...Se6
- 2.Qc6#
- threat
- 1.Rb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 19
- Sets
- R(b);::S(C)
- R(b);XB(J)::S(C)
- R(h);OGATE::B(J)
- R(h);N_SPINP(e),OGATE::B(J)
- B(f);N_GUARD::R1(A),XB(f)
- B(f);N_GUARD::R1(A)
- S(c);N_GUARD::QAR1(I),XP(e)
- S(i);N_GUARD::QAB(I),XS(i)
- S(i);N_GUARD,N_SPINP(e)::QAB(I)
- S(i);N_GUARD::QAB(I)
- Tries
- Try
- B(E);XR(b)
- Threat
- S(C)
- Vars
- P(a);OGATE,XS(C)::P(D)
- B(f);N_GUARD::R1(A),XB(f)
- S(c);N_GUARD::QAR1(I),XP(e)
- B(f);N_GUARD::R1(A)
- Refutation
- B(f);XP(D)
- Try
- B(J);CHECK
- Vars
- R(b);P_SPINR(b)::S(C)
- R(h);N_GUARD,P_SPINR(h)::B(J),XR(h)
- Refutation
- R(h);XB(J)
- Try
- R(F);CHECK
- Vars
- S(c);XR(F)::QAR1(I),XP(e)
- Refutation
- B(f);XR(F)
- Try
- R(F);XP(a)
- Threat
- DUALS(2)
- Vars
- R(b);XB(J)::S(C)
- B(f);XP(D)::S(C)
- B(f);N_GUARD::R1(A),XB(f)
- S(c);N_GUARD::QAR1(I),XP(e)
- R(b);::S(C)
- Refutation
- R(b);XR(F)
- Try
- Q(I);N_PINP(e),XR(h)
- Threat
- DUALS(4)
- Vars
- P(a);XS(C)::QAB1(I)
- Refutation
- S(i);XQ(I)
- Try
- Actual
- R(F);P_PINS(c)
- Threat
- QAR1(I),XP(e)
- Vars
- B(f);N_GUARD,N_SPINS(c)::R1(A),XB(f)
- R(b);::S(C)
- R(h);OGATE::B(J)
- R(h);N_SPINP(e),OGATE::B(J)
- S(i);N_GUARD::QAB(I),XS(i)
- S(i);N_GUARD,N_SPINP(e)::QAB(I)
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).