MESON Chess Problem Database
Problem Display
PID: 177722 (1K1R4/3p4/4b3/N1N5/1P1kPP2/2n1nQ1r/1P6/4R3 w - - 0 1)
Eerkes, Allard Pieter
1st Prize, Rigasche Rundschau, 1938
#2
10 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qxe3#
- 1...Rh2
- 2.Qxe3#
- 1...Rh4
- 2.Qxe3#
- 1...Rh5
- 2.Qxe3#
- 1...Rh6
- 2.Qxe3#
- 1...Rh7
- 2.Qxe3#
- 1...Rh8
- 2.Qxe3#
- 1...Bc4
- 2.Sc6#
- 1...Sxe4
- 2.Qxe4#
- 1...Sd1
- 2.Sxe6#
- 1...Sf1
- 2.Sxe6#
- 2.bxc3#
- 1...Sc2
- 2.Sxe6#
- 2.bxc3#
- 1...Sg2
- 2.Sxe6#
- 2.bxc3#
- 1...Sc4
- 2.Sab3#
- 2.Sc6#
- 2.Scb3#
- 2.Sxe6#
- 2.bxc3#
- 1...Sg4
- 2.Sxe6#
- 2.bxc3#
- 1...Sd5
- 2.Scb3#
- 1...Sf5
- 2.Sxe6#
- 2.bxc3#
- 1...Rh1
- Tries
- 1.Rd1+?
- 1...Sexd1
- 2.Sxe6#
- 1...Scxd1!
- 1...Sexd1
- 1.Rxe3?
- threat
- 2.Sxe6#
- 2.Rd3#
- 2.bxc3#
- 1...Sxe4
- 2.Rd3#
- 2.Qxe4#
- 1...Rh6
- 2.Rd3#
- 2.bxc3#
- 1...Ba2
- 2.Rd3#
- 2.bxc3#
- 1...Bb3
- 2.Scxb3#
- 2.Rd3#
- 2.bxc3#
- 1...Bc4
- 2.Sc6#
- 2.bxc3#
- 1...Bg4
- 2.Scb3#
- 2.Rd3#
- 2.bxc3#
- 1...Bd5
- 2.Rd3#
- 2.bxc3#
- 1...Bf5
- 2.Scb3#
- 2.Rd3#
- 2.bxc3#
- 1...Bf7
- 2.Rd3#
- 2.bxc3#
- 1...Bg8
- 2.Rd3#
- 2.bxc3#
- 1...Sb1
- 2.Sxe6#
- 2.Rd3#
- 1...Sd1
- 2.Sxe6#
- 2.Rd3#
- 1...Sa2
- 2.Sxe6#
- 2.Rd3#
- 1...Se2
- 2.Sxe6#
- 2.Rd3#
- 1...Sa4
- 2.Sxe6#
- 2.Rd3#
- 1...Sb5
- 2.Sxe6#
- 2.Rd3#
- 1...Sd5
- 2.Scb3#
- 2.Rd3#
- 1...Rxf3!
- threat
- 1.Qe2?
- threat
- 2.Sc6#
- 2.Qd3#
- 2.Qd2#
- 1...Sxe4
- 2.Qd3#
- 1...Rh2
- 2.Sc6#
- 2.Qd3#
- 2.Qxe3#
- 1...Bc4
- 2.Sc6#
- 1...Bd5
- 2.Qd3#
- 2.Qd2#
- 1...Sb1
- 2.Sc6#
- 2.Qd3#
- 1...Scd5
- 2.Sab3#
- 2.Qd3#
- 2.Qd2#
- 1...Sed1
- 2.Sc6#
- 2.Sxe6#
- 1...Sf1
- 2.Sc6#
- 2.Sxe6#
- 1...Sc2
- 2.Sc6#
- 2.Sxe6#
- 1...Sg2
- 2.Sc6#
- 2.Sxe6#
- 1...Sc4
- 2.Sab3#
- 2.Sc6#
- 2.Scb3#
- 2.Sxe6#
- 1...Sg4
- 2.Sc6#
- 2.Sxe6#
- 1...Sed5
- 2.Sab3#
- 2.Scb3#
- 2.Qc4#
- 1...Sf5
- 2.Sc6#
- 2.Sxe6#
- 1...Sxe2!
- threat
- 1.Rd1+?
- Keys
- 1.Rc1!
- threat
- 2.bxc3#
- 1...Sxe4
- 2.Qxe4#
- 1...Sb1
- 2.Sc6#
- 1...Scd1
- 2.Sc6#
- 1...Sa2
- 2.Sc6#
- 1...Se2
- 2.Sc6#
- 1...Sa4
- 2.Sc6#
- 1...Sb5
- 2.Sc6#
- 1...Scd5
- 2.Sab3#
- 1...Sed1
- 2.Sxe6#
- 1...Sed5
- 2.Scb3#
- threat
- 1.Rc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 8
- Sets
- R(c);N_GUARD::QAB1(C),XS(b)
- R(c);N_GUARD,P_PINR(J)::QAB1(C),XS(b)
- B(e);SBLOCK::S(G)
- S(a);OGATE,XP(E)::QAR1(C),XS(a)
- S(b);::S(H),XB(e)
- S(b);N_SPINP(f),S_CUTB(e)::S(H)
- Tries
- Try
- R(A);CHECK
- Vars
- S(b);XR(A)::S(H),XB(e)
- Refutation
- S(a);XR(A)
- Try
- R(A);XS(b)
- Threat
- DUALS(3)
- Refutation
- R(c);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(a);XP(E)::QAR1(C)
- B(e);::S(G)
- Refutation
- S(a);XQ(C)
- Try
- Actual
- R(A);
- Threat
- P(B),XS(a)
- Vars
- S(a);OGATE,XP(E)::QAR1(C),XS(a)
- S(a);::S(G)
- S(a);N_SPINP(f),S_CUTB(e)::S(G)
- S(b);::S(H),XB(e)
- S(b);N_SPINP(f),S_CUTB(e)::S(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).