MESON Chess Problem Database
Problem Display
PID: 243242 (r6b/5P2/BpKPk1P1/4P1R1/NpR5/pP2Q2b/q1n1N1n1/7r w - - 0 1)
Hermanson, Halvar
Tidskrift for Schack, 1980
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxh3#
- 1...Rb1
- 2.Qxh3#
- 1...Rc1
- 2.Qxh3#
- 1...Rd1
- 2.Qxh3#
- 1...Re1
- 2.Qxh3#
- 1...Rg1
- 2.Qxh3#
- 1...Rxa6
- 2.f8S#
- 1...Ra7
- 2.f8S#
- 1...Rc8+
- 2.Bxc8#
- 1...Re8
- 2.fxe8Q#
- 2.fxe8R#
- 1...Rg8
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bxe5
- 2.Qxe5#
- 1...Sa1
- 2.Sd4#
- 1...Sce1
- 2.Sd4#
- 1...Scxe3
- 2.Sd4#
- 1...Sd4+
- 2.Sxd4#
- 1...Sge1
- 2.Sf4#
- 1...Sgxe3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.Sc5#
- 1...Ra1
- Tries
- 1.Rxc2?
- threat
- 2.Sd4#
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Qxb3
- 2.Sd4#
- 2.Qxb3#
- 1...Rxa6
- 2.Sd4#
- 2.f8S#
- 1...Bxe5
- 2.Qxe5#
- 1...Sxe3
- 2.Sd4#
- 2.Sf4#
- 1...Qa1
- 2.Bc4#
- 1...Qb2
- 2.Bc4#
- 1...Rd1
- 2.Qxh3#
- 1...Sf4
- 2.Sd4#
- 2.Sxf4#
- 1...b5
- 2.Sd4#
- 2.Sc5#
- 1...Qxc2+!
- threat
- 1.Rc3?
- threat
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Rxa6
- 2.f8S#
- 1...Bxe5
- 2.Qxe5#
- 1...Scxe3
- 2.Sd4#
- 1...Sgxe3
- 2.Sf4#
- 1...Rd1
- 2.Qxh3#
- 1...Sf4
- 2.Sxf4#
- 1...b5
- 2.Sc5#
- 1...Qxb3!
- threat
- 1.Rxb4?
- threat
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Qxb3
- 2.Qxb3#
- 1...Rxa6
- 2.f8S#
- 1...Bxe5
- 2.Qxe5#
- 1...Scxe3
- 2.Sd4#
- 1...Sgxe3
- 2.Sf4#
- 1...Rd1
- 2.Qxh3#
- 1...Sf4
- 2.Sxf4#
- 1...b5
- 2.Sc5#
- 1...Sxb4+!
- threat
- 1.Rd4?
- threat
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Sxd4+
- 2.Sxd4#
- 1...Qxb3
- 2.Qxb3#
- 1...Rxa6
- 2.f8S#
- 1...Bxe5
- 2.Qxe5#
- 1...Sgxe3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...b5
- 2.Sc5#
- 1...Scxe3!
- threat
- 1.Re4?
- threat
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Qxb3
- 2.Qxb3#
- 1...Rxa6
- 2.f8S#
- 1...Scxe3
- 2.Sd4#
- 1...Sgxe3
- 2.Sf4#
- 1...Rd1
- 2.Qxh3#
- 1...Sf4
- 2.Sxf4#
- 1...b5
- 2.Sc5#
- 1...Bxe5!
- threat
- 1.Rf4?
- threat
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Qxb3
- 2.Qxb3#
- 1...Rxa6
- 2.f8S#
- 1...Scxe3
- 2.Sd4#
- 1...Sxf4
- 2.Sxf4#
- 1...Rd1
- 2.Qxh3#
- 1...b5
- 2.Sc5#
- 1...Sgxe3!
- threat
- 1.Rcg4?
- threat
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Qxb3
- 2.Qxb3#
- 1...Rxa6
- 2.f8S#
- 1...Bxe5
- 2.Qxe5#
- 1...Scxe3
- 2.Sd4#
- 1...Sgxe3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...b5
- 2.Sc5#
- 1...Rd1!
- threat
- 1.Rc5?
- threat
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Qxb3
- 2.Qxb3#
- 1...Rxa6
- 2.f8S#
- 1...Bxe5
- 2.Qxe5#
- 1...Scxe3
- 2.Sd4#
- 1...Sgxe3
- 2.Sf4#
- 1...Rd1
- 2.Qxh3#
- 1...Sf4
- 2.Sxf4#
- 1...b5!
- threat
- 1.Qc5?
- threat
- 2.Qd5#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Bxe5
- 2.Qxe5#
- 1...bxc5
- 2.Sxc5#
- 1...Sce3
- 2.Sd4#
- 1...Sge3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Rd1!
- threat
- 1.Qd3?
- threat
- 2.Qd5#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Rd1
- 2.Qxh3#
- 1...Sce3
- 2.Sd4#
- 1...Sge3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Bxe5!
- threat
- 1.Qf3?
- threat
- 2.Qd5#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Rd1
- 2.Qxh3#
- 1...Sce3
- 2.Sd4#
- 1...Sge3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Bxe5!
- threat
- 1.Qe4?
- threat
- 2.Qd5#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Bxe5
- 2.Qxe5#
- 1...Sce3
- 2.Sd4#
- 1...Sge3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Rd1!
- threat
- 1.Rxc2?
- Keys
- 1.Rh4!
- threat
- 2.Bc4#
- 1...Rc8+
- 2.Bxc8#
- 1...Sd4+
- 2.Sxd4#
- 1...Qxb3
- 2.Qxb3#
- 1...Rxa6
- 2.f8S#
- 1...Bxe5
- 2.Qxe5#
- 1...Scxe3
- 2.Sd4#
- 1...Sgxe3
- 2.Sf4#
- 1...Rd1
- 2.Qxh3#
- 1...Sf4
- 2.Sxf4#
- 1...b5
- 2.Sc5#
- threat
- 1.Rh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(a);N_GUARD::QAB(C),XB(f)
- R(j);N_GUARD,XB(H)::P=S
- R(j);N_GUARD::P=S
- R(j);CHECK,N_GUARD::B(H),XR(j)
- R(j);OGATE::PXR(j)=Q
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- S(c);N_GUARD::S(A)
- S(c);N_GUARD,XQ(C)::S(A)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD::S(A),XS(d)
- P(h);N_GUARD::S(D)
- Tries
- Try
- R(E);XS(c)
- Threat
- DUALS(2)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- Q(b);::B(H)
- R(a);N_GUARD::QAB(C),XB(f)
- Refutation
- Q(b);CHECK,XR(E)
- Try
- R(E);
- Threat
- B(H)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- R(j);N_GUARD,XB(H)::P=S
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- S(c);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD,XQ(C)::S(A)
- R(a);N_GUARD::QAB(C),XB(f)
- S(d);N_GUARD::S(A),XS(d)
- P(h);N_GUARD::S(D)
- Refutation
- Q(b);XP(B)
- Try
- R(E);XP(g)
- Threat
- B(H)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- Q(b);OGATE,XP(B)::QAB(C),XQ(b)
- R(j);N_GUARD,XB(H)::P=S
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- S(c);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD,XQ(C)::S(A)
- R(a);N_GUARD::QAB(C),XB(f)
- S(d);N_GUARD::S(A),XS(d)
- P(h);N_GUARD::S(D)
- Refutation
- S(c);CHECK,XR(E)
- Try
- R(E);
- Threat
- B(H)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,XR(E)::S(A),XS(c)
- Q(b);OGATE,XP(B)::QAB(C),XQ(b)
- R(j);N_GUARD,XB(H)::P=S
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- S(d);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD::S(A),XS(d)
- P(h);N_GUARD::S(D)
- Refutation
- S(c);XQ(C)
- Try
- R(E);
- Threat
- B(H)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- Q(b);OGATE,XP(B)::QAB(C),XQ(b)
- R(j);N_GUARD,XB(H)::P=S
- S(c);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD,XQ(C)::S(A)
- R(a);N_GUARD::QAB(C),XB(f)
- S(d);N_GUARD::S(A),XS(d)
- P(h);N_GUARD::S(D)
- Refutation
- B(k);P_SPINB(k),XP(F)
- Try
- R(E);
- Threat
- B(H)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- Q(b);OGATE,XP(B)::QAB(C),XQ(b)
- R(j);N_GUARD,XB(H)::P=S
- S(c);N_GUARD,XQ(C)::S(A)
- S(d);XR(E)::S(A),XS(d)
- R(a);N_GUARD::QAB(C),XB(f)
- P(h);N_GUARD::S(D)
- Refutation
- S(d);XQ(C)
- Try
- R(E);
- Threat
- B(H)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- Q(b);OGATE,XP(B)::QAB(C),XQ(b)
- R(j);N_GUARD,XB(H)::P=S
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- S(c);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD::S(A),XS(d)
- P(h);N_GUARD::S(D)
- Refutation
- R(a);
- Try
- R(E);
- Threat
- B(H)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- Q(b);OGATE,XP(B)::QAB(C),XQ(b)
- R(j);N_GUARD,XB(H)::P=S
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- S(c);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD,XQ(C)::S(A)
- R(a);N_GUARD::QAB(C),XB(f)
- S(d);N_GUARD::S(A),XS(d)
- Refutation
- P(h);
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- B(k);OGATE,XP(F)::QAR1(C),XB(k)
- P(h);XQ(C)::S(D),XP(h)
- S(c);N_GUARD::S(A)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- Refutation
- R(a);
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- R(a);N_GUARD::QAB(C),XB(f)
- S(c);N_GUARD::S(A)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- Refutation
- B(k);XP(F)
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- R(a);N_GUARD::QAB(C),XB(f)
- S(c);N_GUARD::S(A)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- Refutation
- B(k);XP(F)
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- S(c);N_GUARD::S(A)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- Refutation
- R(a);
- Try
- Actual
- R(E);
- Threat
- B(H)
- Vars
- R(j);CHECK,N_GUARD::B(H),XR(j)
- S(c);CHECK,N_GUARD::S(A),XS(c)
- Q(b);OGATE,XP(B)::QAB(C),XQ(b)
- R(j);N_GUARD,XB(H)::P=S
- B(k);OGATE,P_SPINB(k),XP(F)::QAR1(C),XB(k)
- S(c);N_GUARD,XQ(C)::S(A)
- S(d);N_GUARD,XQ(C)::S(A)
- R(a);N_GUARD::QAB(C),XB(f)
- S(d);N_GUARD::S(A),XS(d)
- P(h);N_GUARD::S(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).