MESON Chess Problem Database
Problem Display
PID: 187201 (1Kn1B3/2N1n3/R3p3/p1k5/r1N5/PbPQ2B1/4r2q/2R3b1 w - - 0 1)
van der Scheur, D
Probleemblad, 1979
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Sxe6#
- 1...Rb2
- 2.Sxe6#
- 1...Rc2
- 2.Sxe6#
- 1...Rd2
- 2.Sxe6#
- 1...Rf2
- 2.Sxe6#
- 2.Qd4#
- 1...Rg2
- 2.Sxe6#
- 1...Re3
- 2.Qd4#
- 1...Be3
- 2.Sxe6#
- 1...Bd4
- 2.Qxd4#
- 2.cxd4#
- 1...Sd5
- 2.Rc6#
- 1...Sf5
- 2.Rc6#
- 1...Sc6+
- 2.Rxc6#
- 1...Sg6
- 2.Rc6#
- 1...Sg8
- 2.Rc6#
- 1...e5
- 2.Se6#
- 1...Ra2
- Tries
- 1.Sb2?
- threat
- 2.Qb5#
- 1...Rb4+
- 2.cxb4#
- 1...Sc6+
- 2.Rxc6#
- 1...Bc4
- 2.Sxa4#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Rc4!
- threat
- 1.Sd2?
- threat
- 2.Sxb3#
- 2.Qb5#
- 1...Rb4+
- 2.cxb4#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxd2
- 2.Qb5#
- 1...Rxa3
- 2.Qb5#
- 1...Rc4
- 2.Sxb3#
- 1...Bd1
- 2.Qb5#
- 1...Ba2
- 2.Qb5#
- 1...Bc2
- 2.Qb5#
- 1...Bd5
- 2.Qb5#
- 1...Sd6
- 2.Sxb3#
- 2.Qxd6#
- 1...Sa7
- 2.Sxb3#
- 2.Qd6#
- 1...Bc4!
- threat
- 1.Sxa5?
- threat
- 2.Sxb3#
- 2.Sb7#
- 2.Qb5#
- 1...Rb4+
- 2.axb4#
- 2.cxb4#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa3
- 2.Sb7#
- 2.Qb5#
- 1...Qh1
- 2.Sxb3#
- 2.Qb5#
- 1...Qg2
- 2.Sxb3#
- 2.Qb5#
- 1...Rb2
- 2.Sb7#
- 2.Qb5#
- 1...Rc4
- 2.Sxb3#
- 2.Sb7#
- 1...Bd1
- 2.Sb7#
- 2.Qb5#
- 1...Ba2
- 2.Sb7#
- 2.Qb5#
- 1...Bc2
- 2.Sb7#
- 2.Qb5#
- 1...Bc4
- 2.Sb7#
- 1...Bd5
- 2.Qb5#
- 1...Sd6
- 2.Sxb3#
- 2.Qxd6#
- 1...Sa7
- 2.Sxb3#
- 2.Sb7#
- 2.Qd6#
- 1...Rxa5!
- threat
- 1.Se5?
- threat
- 2.Sd7#
- 2.Qb5#
- 1...Rb4+
- 2.cxb4#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxe5
- 2.Qb5#
- 1...Rc4
- 2.Sd7#
- 2.Sxe6#
- 1...Rd4
- 2.Qb5#
- 2.cxd4#
- 1...Bc4
- 2.Sd7#
- 1...Sd6
- 2.Sd7#
- 2.Qxd6#
- 1...Sa7
- 2.Sd7#
- 2.Qd6#
- 1...Sb6!
- threat
- 1.Sb6?
- threat
- 2.Sd7#
- 2.Qb5#
- 1...Qxg3
- 2.Sd7#
- 1...Sxb6
- 2.Qb5#
- 1...Re5
- 2.Sd7#
- 1...Rb4
- 2.cxb4#
- 1...Rc4
- 2.Sd7#
- 1...Rd4
- 2.Qb5#
- 2.cxd4#
- 1...Rf4
- 2.Sd7#
- 1...Bc4
- 2.Sxa4#
- 2.Sd7#
- 1...Sd6
- 2.Sd7#
- 2.Qxd6#
- 1...Sa7
- 2.Sd7#
- 2.Qd6#
- 1...e5
- 2.Sd7#
- 1...Sc6+!
- threat
- 1.Sd6?
- threat
- 2.Sb7#
- 2.Qb5#
- 1...Rb4+
- 2.cxb4#
- 1...Sc6+
- 2.Rxc6#
- 1...Qh1
- 2.Qb5#
- 1...Qg2
- 2.Qb5#
- 1...Rc4
- 2.Sb7#
- 1...Bc4
- 2.Sb7#
- 1...Bd5
- 2.Qb5#
- 1...Sa7
- 2.Sb7#
- 1...Sxd6!
- threat
- 1.Rb6?
- threat
- 2.Sa6#
- 2.Rb5#
- 1...Sc6+
- 2.Rxc6#
- 1...Qxg3
- 2.Rb5#
- 1...Rxc4
- 2.Rb5#
- 1...Sxb6
- 2.Sa6#
- 1...Rb4
- 2.Sa6#
- 1...Bd4
- 2.Rb5#
- 2.Qxd4#
- 2.cxd4#
- 1...Sd6
- 2.Sa6#
- 1...Sa7
- 2.Sa6#
- 1...Bxc4!
- threat
- 1.Qd5+?
- 1...Sxd5
- 2.Rc6#
- 1...exd5!
- 1...Sxd5
- 1.Qd6+?
- 1...Kxc4
- 2.Bb5#
- 1...Sxd6!
- 1...Kxc4
- 1.Sb2?
- Keys
- 1.Se3!
- threat
- 2.Qb5#
- 1...Rb4+
- 2.cxb4#
- 1...Sc6+
- 2.Rxc6#
- 1...Rc4
- 2.Sxe6#
- 1...Bc4
- 2.Qd4#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 12
- Sets
- R(b);N_GUARD::S(H),XP(h)
- R(b);S_CUTB(a)::QAB1(D)
- B(a);S_CUTR(b)::S(H),XP(h)
- S(i);N_GUARD::R1(G)
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- P(h);S_CUTR(b)::S(H)
- Tries
- Try
- S(F);
- Threat
- QAR1(D)
- Vars
- R(e);CHECK,OGATE::R(A)+P(C)DCHECK,XR(e)
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- B(d);N_GUARD::S(F),XR(e)
- S(j);N_GUARD::QAB1(D),XS(j)
- S(j);N_GUARD::QAB1(D)
- Refutation
- R(e);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,OGATE::R(A)+P(C)DCHECK,XR(e)
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- R(b);XS(F)::QAR1(D)
- R(e);XP(B)::QAR1(D)
- R(e);::S(F),XB(d)
- B(d);::QAR1(D)
- Refutation
- B(d);
- Try
- S(F);XP(f)
- Threat
- DUALS(3)
- Vars
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- B(d);::S(F)
- B(d);::QAR1(D)
- Refutation
- R(e);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,OGATE::R(A)+P(C)DCHECK,XR(e)
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- R(b);XS(F)::QAR1(D)
- B(d);::S(F)
- Refutation
- S(j);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(c);P_PINS(H),XB(E)::S(F)
- S(j);XS(F)::QAR1(D)
- R(b);::S(F)
- R(e);OGATE,P_PINS(F)::R(A)+P(C)DCHECK,XR(e)
- R(e);::S(F)
- P(h);::S(F)
- Refutation
- S(i);CHECK
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,OGATE::R(A)+P(C)DCHECK,XR(e)
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- Q(c);::QAR1(D)
- R(e);::S(F)
- B(d);::S(F)
- B(d);::QAR1(D)
- S(j);::S(F)
- Refutation
- S(j);XS(F)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- Q(c);P_PINS(H),XB(E)::R1(G)
- R(e);XS(F)::R1(G)
- S(j);XR(G)::S(H)
- R(e);P_PINR(G)::S(H)
- S(j);::S(H)
- Refutation
- B(d);XS(F)
- Try
- Q(D);CHECK
- Vars
- S(i);XQ(D)::R1(G)
- Refutation
- P(h);XQ(D)
- Try
- Q(D);CHECK
- Vars
- K(g);P-FLIGHT,XS(F)::B(J)
- Refutation
- S(j);XQ(D)
- Try
- Actual
- S(F);
- Threat
- QAR1(D)
- Vars
- R(e);CHECK,OGATE::R(A)+P(C)DCHECK,XR(e)
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- R(e);S_CUTB(d)::S(H),XP(h)
- B(d);S_CUTR(e)::QAB1(D)
- S(j);N_GUARD::QAB1(D),XS(j)
- S(j);N_GUARD::QAB1(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).