MESON Chess Problem Database
Problem Display
PID: 17629 (1N4B1/1r2n2r/Qn1pq3/N1k3bR/8/2P1p1R1/1P6/4K1Bb w - - 0 1)
Goldschmeding, Cornelis
2/3 Prize, Die Schwalbe 088. TT, 1948
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Bxe3#
- 2.b4#
- 1...Qb3
- 2.Sxb3#
- 2.Bxe3#
- 1...Qh3
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Qg4
- 2.Sb3#
- 1...Qd5
- 2.b4#
- 1...Qf5
- 2.Sb3#
- 2.b4#
- 1...Qd7
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Qc8
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Qe4
- 2.Sb3#
- 1...Qe5
- 2.Sb3#
- 2.b4#
- 1...Qf6
- 2.Sb3#
- 2.b4#
- 1...Qg6
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Qh6
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Bd5
- 2.b4#
- 1...Sbd5
- 2.Sxb7#
- 1...Sed5
- 2.Sb3#
- 1...d5
- 2.Sxb7#
- 1...Qa2
- Tries
- 1.Sb3+?
- 1...Qxb3
- 2.Bxe3#
- 1...Kd5!
- 1...Qxb3
- 1.Bxe6?
- threat
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Rxb8
- 2.Bxe3#
- 2.b4#
- 1...Rxh5
- 2.Sb3#
- 2.b4#
- 1...d5
- 2.Sxb7#
- 1...Bd5
- 2.b4#
- 1...Sa4
- 2.Bxe3#
- 1...Sbd5
- 2.Sxb7#
- 1...Sd7
- 2.Bxe3#
- 1...Sa8
- 2.Bxe3#
- 1...Sbc8
- 2.Bxe3#
- 1...Sed5
- 2.Sb3#
- 1...Sf5
- 2.Sb3#
- 2.b4#
- 1...Sc6
- 2.Sb3#
- 1...Sc4!
- threat
- 1.Rgxg5+?
- 1...Qd5
- 2.Sb3#
- 2.Sxb7#
- 2.Bxe3#
- 2.b4#
- 1...Qf5
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Qe5
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Bd5
- 2.Sb3#
- 2.Sxb7#
- 2.b4#
- 1...Sbd5
- 2.Sxb7#
- 1...Sed5
- 2.Sb3#
- 2.b4#
- 1...d5
- 2.Sxb7#
- 1...Sf5!
- 1...Qd5
- 1.Rhxg5+?
- 1...Qd5
- 2.Sb3#
- 2.Sxb7#
- 2.Bxe3#
- 2.b4#
- 1...Qf5
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Qe5
- 2.Sb3#
- 2.Bxe3#
- 2.b4#
- 1...Bd5
- 2.Sb3#
- 2.Sxb7#
- 2.b4#
- 1...Sbd5
- 2.Sxb7#
- 1...Sed5
- 2.Sb3#
- 2.b4#
- 1...d5
- 2.Sxb7#
- 1...Sf5!
- 1...Qd5
- 1.Sb3+?
- Keys
- 1.Rxe3!
- threat
- 2.Re5#
- 1...Qxe3+
- 2.Bxe3#
- 1...Kd5
- 2.Qb5#
- 1...Qd5
- 2.b4#
- 1...Qe4
- 2.Sb3#
- 2.Rxe4#
- 1...Qe5
- 2.Sb3#
- 2.Rxe5#
- 2.b4#
- 1...Be4
- 2.Rd3#
- 1...Bd5
- 2.b4#
- 1...Sbd5
- 2.Sxb7#
- 1...Sed5
- 2.Sb3#
- 1...d5
- 2.Sxb7#
- threat
- 1.Rxe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(g);N_GUARD::S(F)
- Q(g);N_SPINB(d)::P(C)
- B(a);N_SPINB(d),SBLOCK::P(C)
- S(e);N_SPINB(d),SBLOCK,S_CUTB(a)::S(F),XR(h)
- S(i);N_SPINB(d),SBLOCK,S_CUTQ(g)::S(F)
- P(f);N_SPINB(d),SBLOCK,S_CUTB(a)::S(F),XR(h)
- Tries
- Try
- S(F);CHECK
- Vars
- Q(g);XS(F)::B(B),XP(b)
- Refutation
- K(c);N_SPINP(b),P-FLIGHT,P_SPINQ(g)
- Try
- B(J);XQ(g)
- Threat
- DUALS(3)
- Vars
- P(f);N_SPINB(d),S_CUTB(a)::S(F),XR(h)
- B(a);N_SPINB(d)::P(C)
- S(e);::B(B),XP(b)
- S(e);N_SPINB(d),S_CUTB(a)::S(F),XR(h)
- S(i);N_SPINB(d)::S(F)
- S(i);::S(F)
- Refutation
- S(e);
- Try
- R(E);CHECK,XB(d)
- Vars
- S(e);P_SPINS(e)::S(F),XR(h)
- P(f);::S(F),XR(h)
- Refutation
- S(i);P_SPINS(i)
- Try
- R(G);CHECK,XB(d)
- Vars
- S(e);P_SPINS(e)::S(F),XR(h)
- P(f);::S(F),XR(h)
- Refutation
- S(i);P_SPINS(i)
- Try
- Actual
- R(E);P_SPINR(E),XP(b)
- Threat
- B(B)+R(E),DCHECK
- Vars
- Q(g);CHECK,OGATE,P_SPINQ(g),XR(E)::B(B),XQ(g)
- K(c);P-FLIGHT,P_SPINQ(g)::QAR2(H)
- Q(g);N_PINR(E),N_SPINB(d)::P(C)
- B(a);N_PINR(E)::B(B)+R(E)
- B(a);N_SPINB(d),SBLOCK::P(C)
- S(e);N_SPINB(d),SBLOCK,S_CUTB(a)::S(F),XR(h)
- S(i);N_SPINB(d),SBLOCK,S_CUTQ(g)::S(F)
- P(f);N_SPINB(d),SBLOCK,S_CUTB(a)::S(F),XR(h)
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).