MESON Chess Problem Database
Problem Display
PID: 265084 (2Q1r3/1p1r4/kBP5/PR4p1/P1R3P1/8/8/5BK1 w - - 0 1)
Hermanson, Halvar
Die Schwalbe, 1971
#2
10 + 5
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Rd3
- 2.Qxb7#
- 1...Rd4
- 2.Qxb7#
- 1...Rd5
- 2.Qxb7#
- 1...Rd6
- 2.Qxb7#
- 1...Rdd8
- 2.Qxb7#
- 1...Re1
- 2.Qa8#
- 1...Re2
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Re4
- 2.Qa8#
- 1...Re5
- 2.Qa8#
- 1...Re6
- 2.Qa8#
- 1...Re7
- 2.Qa8#
- 1...Rd1
- Tries
- 1.Rd4?
- threat
- 2.Re5#
- 1...Rxd4
- 2.Qxb7#
- 1...Rd5
- 2.Qxb7#
- 1...Re1
- 2.Qa8#
- 1...Re2
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Re4
- 2.Qa8#
- 1...Re5
- 2.Rxe5#
- 2.Qa8#
- 1...Rf8
- 2.Rf5#
- 1...Rf7!
- threat
- 1.Re4?
- threat
- 2.Rd5#
- 1...Rxe4
- 2.Qa8#
- 1...Rf7
- 2.Rf5#
- 1...Rd1
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Rd3
- 2.Qxb7#
- 1...Rd4
- 2.Qxb7#
- 1...Rd5
- 2.Rxd5#
- 2.Qxb7#
- 1...Rf8!
- threat
- 1.Rf4?
- 1...Rxc8
- 2.Rd5#
- 1...Rf7
- 2.Re5#
- 1...Rd1
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Rd3
- 2.Qxb7#
- 1...Rd4
- 2.Qxb7#
- 1...Rd5
- 2.Qxb7#
- 1...Rd6
- 2.Qxb7#
- 1...Rc7
- 2.Re5#
- 1...Rde7
- 2.Re5#
- 1...Rg7
- 2.Re5#
- 1...Rh7
- 2.Re5#
- 1...Rdd8
- 2.Qxb7#
- 1...Re1
- 2.Qa8#
- 1...Re2
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Re4
- 2.Qa8#
- 1...Re5
- 2.Qa8#
- 1...Re6
- 2.Qa8#
- 1...Ree7
- 2.Qa8#
- 1...Red8
- 2.Rd5#
- 1...Rf8
- 2.Rd5#
- 1...Rg8
- 2.Rd5#
- 1...Rh8
- 2.Rd5#
- 1...gxf4!
- 1...Rxc8
- 1.Rd5?
- threat
- 2.Re4#
- 1...Rxd5
- 2.Qxb7#
- 1...Re1
- 2.Qa8#
- 1...Re2
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Re4
- 2.Rxe4#
- 2.Qa8#
- 1...Rf8
- 2.Rf4#
- 1...Rf7!
- threat
- 1.Re5?
- threat
- 2.Rd4#
- 1...Rxe5
- 2.Qa8#
- 1...Rf7
- 2.Rf4#
- 1...Rd1
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Rd3
- 2.Qxb7#
- 1...Rd4
- 2.Rxd4#
- 2.Qxb7#
- 1...Rd5
- 2.Qxb7#
- 1...Rf8!
- threat
- 1.Rd4?
- Keys
- 1.Rf5!
- 1...Rxc8
- 2.Rd4#
- 1...Rf7
- 2.Re4#
- 1...Rd1
- 2.Qxb7#
- 1...Rd2
- 2.Qxb7#
- 1...Rd3
- 2.Qxb7#
- 1...Rd4
- 2.Qxb7#
- 1...Rd5
- 2.Qxb7#
- 1...Rd6
- 2.Qxb7#
- 1...Rc7
- 2.Re4#
- 1...Rde7
- 2.Re4#
- 1...Rg7
- 2.Re4#
- 1...Rh7
- 2.Re4#
- 1...Rdd8
- 2.Qxb7#
- 1...Re1
- 2.Qa8#
- 1...Re2
- 2.Qa8#
- 1...Re3
- 2.Qa8#
- 1...Re4
- 2.Qa8#
- 1...Re5
- 2.Qa8#
- 1...Re6
- 2.Qa8#
- 1...Ree7
- 2.Qa8#
- 1...Red8
- 2.Rd4#
- 1...Rf8
- 2.Rd4#
- 1...Rg8
- 2.Rd4#
- 1...Rh8
- 2.Rd4#
- 1...Rxc8
- 1.Rf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD,P_PINB(A)::QAB1(J),XP(c)
- R(d);N_GUARD::QAB1(J),XP(c)
- R(e);N_GUARD,P_PINB(A)::QAR2(J)
- R(e);N_GUARD::QAR2(J)
- Tries
- Try
- R(D);
- Threat
- B(A)+R(G)
- Vars
- R(d);N_GUARD,XR(D)::QAB1(J),XP(c)
- R(d);N_GUARD::QAB1(J),XP(c)
- R(e);N_GUARD,P_PINB(A)::QAR2(J)
- R(e);N_GUARD::QAR2(J)
- R(e);N_GUARD::B(A)+R(G)
- Refutation
- R(d);
- Try
- R(D);
- Threat
- B(A)+R(G)
- Vars
- R(e);N_GUARD,XR(D)::QAR2(J)
- R(d);N_GUARD::B(A)+R(G)
- R(d);N_GUARD,P_PINB(A)::QAB1(J),XP(c)
- R(d);N_GUARD::QAB1(J),XP(c)
- Refutation
- R(e);
- Try
- R(D);
- Vars
- R(e);N_GUARD,N_SPINP(c),XQ(J)::B(A)+R(G)
- R(d);N_GUARD::B(A)+R(G)
- R(d);N_GUARD,P_PINB(A)::QAB1(J),XP(c)
- R(d);N_GUARD::QAB1(J),XP(c)
- R(e);N_GUARD,P_PINB(A)::QAR2(J)
- R(e);N_GUARD::QAR2(J)
- R(e);N_GUARD::B(A)+R(G)
- Refutation
- P(a);XR(D)
- Try
- R(G);
- Threat
- B(A)+R(D)
- Vars
- R(d);N_GUARD,XR(G)::QAB1(J),XP(c)
- R(e);N_GUARD,P_PINB(A)::QAR2(J)
- R(e);N_GUARD::QAR2(J)
- R(e);N_GUARD::B(A)+R(D)
- Refutation
- R(d);
- Try
- R(G);
- Threat
- B(A)+R(D)
- Vars
- R(e);N_GUARD,XR(G)::QAR2(J)
- R(d);N_GUARD::B(A)+R(D)
- R(d);N_GUARD,P_PINB(A)::QAB1(J),XP(c)
- R(d);N_GUARD::QAB1(J),XP(c)
- Refutation
- R(e);
- Try
- Actual
- R(G);
- Vars
- R(e);N_GUARD,N_SPINP(c),XQ(J)::B(A)+R(D)
- R(d);N_GUARD::B(A)+R(D)
- R(d);N_GUARD,P_PINB(A)::QAB1(J),XP(c)
- R(d);N_GUARD::QAB1(J),XP(c)
- R(e);N_GUARD,P_PINB(A)::QAR2(J)
- R(e);N_GUARD::QAR2(J)
- R(e);N_GUARD::B(A)+R(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).