MESON Chess Problem Database
Problem Display
PID: 238632 (q4b2/4nr2/2b1BR2/4kP1N/1B1p3r/p2Q1P1p/4N2K/4R3 w - - 0 1)
van Atten, Jasper
Probleemblad, 1981
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxh5
- 2.Qxd4#
- 1...Be4
- 2.Qxd4#
- 1...Sxf5
- 2.Qxf5#
- 1...Rxh5
- Tries
- 1.Sc1+?
- 1...Re4
- 2.f4#
- 1...Be4!
- 1...Re4
- 1.Sg1+?
- 1...Re4
- 2.f4#
- 1...Be4!
- 1...Re4
- 1.Sc3+?
- 1...Re4
- 2.f4#
- 1...Be4!
- 1...Re4
- 1.Seg3+?
- 1...Re4
- 2.f4#
- 1...Be4!
- 1...Re4
- 1.Sxd4+?
- 1...Re4
- 2.f4#
- 1...Be4!
- 1...Re4
- 1.Ba2?
- threat
- 2.Bd6#
- 2.Re6#
- 1...Rxh5
- 2.Re6#
- 2.Qxd4#
- 1...Sxf5
- 2.Re6#
- 2.Qxf5#
- 1...Be4
- 2.Bd6#
- 2.Qxd4#
- 1...Qb8
- 2.Re6#
- 1...Qc8
- 2.Bd6#
- 1...Qd8
- 2.Re6#
- 1...Re4
- 2.Bd6#
- 1...Bd5
- 2.Bd6#
- 1...Bd7
- 2.Bd6#
- 1...Sd5
- 2.Re6#
- 1...Sg6
- 2.Re6#
- 1...Sc8
- 2.Re6#
- 1...Sg8
- 2.Re6#
- 1...Rxf6!
- threat
- 1.Bb3?
- threat
- 2.Bd6#
- 2.Re6#
- 1...Rxh5
- 2.Re6#
- 2.Qxd4#
- 1...Sxf5
- 2.Re6#
- 2.Qxf5#
- 1...Be4
- 2.Bd6#
- 2.Qxd4#
- 1...Qb8
- 2.Re6#
- 1...Qc8
- 2.Bd6#
- 1...Qd8
- 2.Re6#
- 1...Re4
- 2.Bd6#
- 1...Bd5
- 2.Bd6#
- 1...Bd7
- 2.Bd6#
- 1...Sd5
- 2.Re6#
- 1...Sg6
- 2.Re6#
- 1...Sc8
- 2.Re6#
- 1...Sg8
- 2.Re6#
- 1...Rxf6!
- threat
- 1.Bc4?
- threat
- 2.Bd6#
- 2.Re6#
- 1...Rxh5
- 2.Re6#
- 2.Qxd4#
- 1...Sxf5
- 2.Re6#
- 2.Qxf5#
- 1...Be4
- 2.Bd6#
- 2.Qxd4#
- 1...Qb8
- 2.Re6#
- 1...Qc8
- 2.Bd6#
- 1...Qd8
- 2.Re6#
- 1...Re4
- 2.Bd6#
- 1...Bd5
- 2.Bd6#
- 1...Bd7
- 2.Bd6#
- 1...Sd5
- 2.Re6#
- 1...Sg6
- 2.Re6#
- 1...Sc8
- 2.Re6#
- 1...Sg8
- 2.Re6#
- 1...Rxf6!
- threat
- 1.Qb5+?
- 1...Bd5
- 2.Sef4#
- 1...Sd5
- 2.Sef4#
- 1...Bxb5!
- 1...Bd5
- 1.Qe3+?
- 1...Re4
- 2.f4#
- 1...Be4
- 2.Qxd4#
- 1...dxe3!
- 1...Re4
- 1.Sc1+?
- Keys
- 1.Bd5!
- threat
- 2.Sef4#
- 1...Kxd5
- 2.Sc3#
- 1...Rxh5
- 2.Qxd4#
- 1...Bxd5
- 2.Bd6#
- 1...Sxd5
- 2.Re6#
- 1...Sxf5
- 2.Qxf5#
- 1...Re4
- 2.Qxe4#
- 1...Rf4
- 2.Sexf4#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- R(d);N_GUARD,XS(H)::QAB1(D),XP(c)
- B(f);S_CUTR(d)::QAB1(D),XP(c)
- S(g);OGATE,XP(G)::QAR1(D),XS(g)
- Tries
- Try
- S(B);CHECK
- Vars
- R(d);P_SPINR(d)::P(E)
- Refutation
- B(f);P_SPINB(f)
- Try
- S(B);CHECK
- Vars
- R(d);P_SPINR(d)::P(E)
- Refutation
- B(f);P_SPINB(f)
- Try
- S(B);CHECK
- Vars
- R(d);P_SPINR(d)::P(E)
- Refutation
- B(f);P_SPINB(f)
- Try
- S(B);CHECK
- Vars
- R(d);P_SPINR(d)::P(E)
- Refutation
- B(f);P_SPINB(f)
- Try
- S(B);CHECK,XP(c)
- Vars
- R(d);P_SPINR(d)::P(E)
- Refutation
- B(f);P_SPINB(f)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- Q(i);::R1(J)
- Q(i);::B(F)
- R(d);::B(F)
- B(f);::B(F)
- S(g);::R1(J)
- Refutation
- R(h);XR(J)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- Q(i);::R1(J)
- Q(i);::B(F)
- R(d);::B(F)
- B(f);::B(F)
- S(g);::R1(J)
- Refutation
- R(h);XR(J)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- Q(i);::R1(J)
- Q(i);::B(F)
- R(d);::B(F)
- B(f);::B(F)
- S(g);::R1(J)
- Refutation
- R(h);XR(J)
- Try
- Q(D);CHECK
- Vars
- B(f);P_SPINB(f)::R(A)+S(B)
- S(g);P_SPINS(g)::R(A)+S(B)
- Refutation
- B(f);XQ(D)
- Try
- Q(D);CHECK
- Vars
- R(d);P_SPINR(d)::P(E)
- B(f);P_SPINB(f),S_CUTR(d)::QAB1(D),XP(c)
- Refutation
- P(c);XQ(D)
- Try
- Actual
- B(I);
- Threat
- R(A)+S(B)
- Vars
- K(e);P-FLIGHT,P_SPINP(c),XB(I)::S(B)
- R(d);N_GUARD,XS(H)::QAB1(D),XP(c)
- B(f);SBLOCK,XB(I)::B(F)
- S(g);SBLOCK,XB(I)::R1(J)
- S(g);OGATE,XP(G)::QAR1(D),XS(g)
- R(d);N_GUARD::QAR1(D),XR(d)
- R(d);::R(A)+S(B),XR(d)
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).