MESON Chess Problem Database
Problem Display
PID: 136088 (3nR3/4n2N/5PP1/2P3Rp/2K2k2/1p1B3p/1rpPp2r/Q1B1N3 w - - 0 1)
Hirschenson, Aaron
Mat Plus, 2010
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qd4#
- 2.Qe5#
- 1...Ra2
- 2.Qd4#
- 2.Qe5#
- 1...Sd5
- 2.Re4#
- 1...Sf5
- 2.Re4#
- 1...Sec6
- 2.Re4#
- 1...Sxg6
- 2.Re4#
- 1...Sc8
- 2.Re4#
- 1...Sg8
- 2.Re4#
- 1...Rb1
- Tries
- 1.Bxc2?
- threat
- 2.d3#
- 2.d4#
- 1...bxc2
- 2.d3#
- 1...Rb1
- 2.Qd4#
- 2.Qe5#
- 1...Sd5
- 2.Re4#
- 1...Sf5
- 2.Re4#
- 1...Rxc2+!
- threat
- 1.Bxe2?
- threat
- 2.d3#
- 1...Ke4
- 2.d3#
- 1...Rb1
- 2.Qd4#
- 2.Qe5#
- 1...Sd5
- 2.Sd3#
- 1...Sf5
- 2.Sd3#
- 1...Rxe2!
- threat
- 1.Bf5?
- threat
- 2.d4#
- 1...Ke5
- 2.Sd3#
- 2.d4#
- 1...Rb1
- 2.Qd4#
- 1...Sd5
- 2.Re4#
- 1...Sxf5!
- threat
- 1.Qxb2?
- threat
- 2.Qd4#
- 2.Qe5#
- 1...Sxg6
- 2.Re4#
- 2.Qd4#
- 1...Se6
- 2.Qe5#
- 1...Sf5
- 2.Re4#
- 2.Qe5#
- 1...Sec6
- 2.Re4#
- 1...Sf7
- 2.Qd4#
- 1...Sdc6!
- threat
- 1.Bxc2?
- Keys
- 1.Be4!
- threat
- 2.d3#
- 1...Kxe4
- 2.d3#
- 1...Rb1
- 2.Qe5#
- 1...Sd5
- 2.Sd3#
- 1...Sf5
- 2.Sd3#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- S(i);OGATE::R1(L)
- S(i);OGATE,XP(J)::R1(L)
- Tries
- Try
- B(E);XP(b)
- Threat
- DUALS(2)
- Vars
- P(e);XB(E)::B(B)+P(D)
- S(i);OGATE::R1(L)
- Refutation
- R(a);CHECK,XB(E)
- Try
- B(E);XP(c)
- Threat
- B(B)+P(D)
- Vars
- K(g);P-FLIGHT,P_SPINS(i)::P(D)
- S(i);::S(C)
- Refutation
- R(d);XB(E)
- Try
- B(E);
- Threat
- B(B)+P(D)
- Vars
- R(a);OGATE::QAR2(A)
- S(i);OGATE::R1(L)
- Refutation
- S(i);XB(E)
- Try
- Q(A);XR(a)
- Threat
- DUALS(2)
- Vars
- S(j);::QAB1(A)
- S(i);OGATE::R1(L)
- S(j);::QAR2(A)
- Refutation
- S(j);
- Try
- Actual
- B(E);
- Threat
- B(B)+P(D)
- Vars
- K(g);P-FLIGHT,P_SPINS(i),XB(E)::P(D)
- R(a);OGATE::QAB1(A)
- S(i);::S(C)
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).