MESON Chess Problem Database
Problem Display
PID: 139195 (K7/2N2p2/1Np3b1/P1k1PQ2/3n2rb/P3n1r1/2B2B2/2R5 w - - 0 1)
Apro, Laszlo
The Problemist, 1937
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Sf1
- 2.Bd3#
- 1...Sg2
- 2.Bd3#
- 1...Sc4
- 2.Sa4#
- 2.Sd7#
- 1...Sexf5
- 2.Bd3#
- 1...Sf1
- Tries
- 1.Bb3+?
- 1...Sec2
- 2.Sa4#
- 2.Sd7#
- 1...Sc4
- 2.Sa4#
- 2.Sd7#
- 2.Rxc4#
- 1...Sdc2!
- 1...Sec2
- 1.Bd3+?
- 1...Sec2
- 2.Sa4#
- 2.Sd7#
- 2.Sa6#
- 2.Rxc2#
- 1...Sc4
- 2.Sa4#
- 2.Sd7#
- 2.Rxc4#
- 1...Sdc2!
- 1...Sec2
- 1.Ba4+?
- 1...Sec2
- 2.Sa6#
- 1...Sc4
- 2.Sd7#
- 2.Sa6#
- 2.Rxc4#
- 1...Sdc2!
- 1...Sec2
- 1.Qd3?
- threat
- 2.Sa4#
- 2.Sd7#
- 2.Sa6#
- 1...Sdxc2
- 2.Sd7#
- 2.Sa6#
- 2.Qd6#
- 1...Bf5
- 2.Sa4#
- 2.Sa6#
- 1...Sc4
- 2.Sa4#
- 2.Sd7#
- 2.Qxc4#
- 1...Se2
- 2.Sd7#
- 2.Sa6#
- 2.Qd6#
- 1...Sb3
- 2.Sd7#
- 2.Sa6#
- 2.Qd6#
- 1...Sf3
- 2.Sd7#
- 2.Sa6#
- 2.Qd6#
- 1...Sb5
- 2.Sd7#
- 2.Sa6#
- 1...Sdf5
- 2.Sd7#
- 2.Sa6#
- 1...Se6
- 2.Sd7#
- 2.Sa6#
- 2.Qd6#
- 1...Bxd3!
- threat
- 1.Bb3+?
- Keys
- 1.Qd7!
- threat
- 2.Qd6#
- 1...Be7
- 2.Qxe7#
- 1...Sc4
- 2.Sa4#
- 1...Sef5
- 2.Bd3#
- 1...Sb5
- 2.Sa6#
- 1...Sdf5
- 2.Be4#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- S(a);N_GUARD,P_SPINS(c)::R(A)+B(B)
- S(a);N_GUARD,P_SPINS(c),XQ(G)::R(A)+B(B)
- Tries
- Try
- B(B);CHECK
- Refutation
- S(c);P_SPINS(c)
- Try
- B(B);CHECK
- Refutation
- S(c);P_SPINS(c)
- Try
- B(B);CHECK
- Vars
- S(a);P_SPINS(a)::S(I)
- Refutation
- S(c);P_SPINS(c)
- Try
- Q(G);
- Threat
- DUALS(3)
- Refutation
- B(h);XQ(G)
- Try
- Actual
- Q(G);
- Threat
- QAB1(G)
- Vars
- B(e);N_GUARD::QAB(G),XB(e)
- S(a);P_SPINS(c),SBLOCK::S(H)
- S(a);N_GUARD,P_SPINS(c)::R(A)+B(B)
- S(c);P_SPINS(a),SBLOCK::S(I)
- S(c);N_GUARD,P_SPINS(a)::R(A)+B(B)
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).