MESON Chess Problem Database
Problem Display
PID: 73573 (3RR3/4bp2/5r1N/1pB1kP1N/pK2n1r1/2P2n2/2B1Qp2/8 w - - 0 1)
Goldschmeding, Cornelis
Tijdschrift vd KNSB, 1942
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qxe4#
- 1...Rg2
- 2.Qxe4#
- 1...Rg3
- 2.Qxe4#
- 1...Rg5
- 2.Qxe4#
- 1...Rgg6
- 2.Qxe4#
- 1...Rg7
- 2.Qxe4#
- 1...Rg8
- 2.Qxe4#
- 1...Rxf5
- 2.Rxe7#
- 1...Sd4
- 2.cxd4#
- 1...Rg1
- Tries
- 1.Bb3?
- threat
- 2.Rd5#
- 1...Rxf5
- 2.Sxg4#
- 2.Bd6#
- 2.Rxe7#
- 1...Rd6
- 2.Bxd6#
- 1...axb3!
- threat
- 1.Bxe4?
- threat
- 2.Sxg4#
- 2.Rd5#
- 1...Rxf5
- 2.Rxe7#
- 1...Rxh6
- 2.Rd5#
- 1...Rg1
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rd5#
- 1...Rg2
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rd5#
- 1...Rg3
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rd5#
- 1...Rf4
- 2.Rd5#
- 1...Rh4
- 2.Rd5#
- 1...Rg5
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rd5#
- 1...Rgg6
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rd5#
- 1...Rg7
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rd5#
- 1...Rg8
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Rd5#
- 1...Rd6
- 2.Sxg4#
- 2.Sxf7#
- 2.Bxd6#
- 1...Rfg6
- 2.Sxf7#
- 2.Rd5#
- 1...Sh2
- 2.Rd5#
- 1...Rxe4+!
- threat
- 1.Qd3?
- threat
- 2.Rd5#
- 2.Qd5#
- 1...Sed2+
- 2.Sxg4#
- 1...Sxc3+
- 2.Sxg4#
- 1...Sg3+
- 2.Sxg4#
- 1...Sxc5+
- 2.Sxg4#
- 1...Seg5+
- 2.Sxg4#
- 1...Sd6+
- 2.Sxg4#
- 1...Rxf5
- 2.Rxe7#
- 2.Qd5#
- 1...Sd4
- 2.Qxd4#
- 2.cxd4#
- 1...Rd6!
- threat
- 1.Bb3?
- Keys
- 1.Qxb5!
- threat
- 2.Bd6#
- 1...Sed2+
- 2.Sxg4#
- 1...Sxc3+
- 2.Sxg4#
- 1...Sg3+
- 2.Sxg4#
- 1...Sxc5+
- 2.Sxg4#
- 1...Seg5+
- 2.Sxg4#
- 1...Sd6+
- 2.Bd4#
- 1...Rxf5
- 2.Rxe7#
- 1...Rd6
- 2.Bd4#
- 2.Bxd6#
- threat
- 1.Qxb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- R(e);N_GUARD::QAR1(B),XS(d)
- R(h);N_GUARD,XP(F)::R(J),XB(i)
- S(b);OGATE::P(C),XS(b)
- Tries
- Try
- B(A);
- Threat
- R1(I)
- Vars
- R(h);N_GUARD,N_PINB(E)::B(E),XR(h)
- Refutation
- P(c);XB(A)
- Try
- B(A);N_SPINB(E),P_SPINB(A),XS(d)
- Threat
- DUALS(2)
- Vars
- R(h);N_GUARD,XP(F)::R(J),XB(i)
- R(h);XS(H)::R1(I)
- R(e);::R1(I)
- S(b);::R1(I)
- Refutation
- R(e);CHECK,P_PINB(E),P_SPINR(e),XB(A)
- Try
- Q(B);N_PINS(d)
- Threat
- DUALS(2)
- Vars
- S(d);CHECK::S(H),XR(e)
- S(d);CHECK,XP(C)::S(H),XR(e)
- S(d);CHECK,XB(E)::S(H),XR(e)
- S(d);CHECK,N_PINB(E)::S(H),XR(e)
- Refutation
- R(h);N_PINB(E)
- Try
- Actual
- Q(B);N_PINS(d),XP(f)
- Threat
- QAR(B)+B(E),DCHECK
- Vars
- S(d);CHECK::S(H),XR(e)
- S(d);CHECK,XP(C)::S(H),XR(e)
- S(d);CHECK,P_SPINS(d),XB(E)::S(H),XR(e)
- S(d);CHECK,N_PINB(E)::QAR(B)+B(E),DCHECK
- R(h);N_GUARD,XP(F)::R(J),XB(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).