MESON Chess Problem Database
Problem Display
PID: 152407 (b2n4/RqP1Kp2/1Pk1pP2/B1p5/4p1B1/1Q6/8/8 w - - 0 1)
Guidelli, Giorgio
Good Companions (November), 1915
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Qa6
- 2.cxd8S#
- 1...Qxc7+
- 2.Rxc7#
- 1...Qb8
- 2.cxb8S#
- 1...e3
- 2.Bf3#
- 1...c4
- 2.Qxc4#
- 1...e5
- 2.Bd7#
- 1...Qa6
- Tries
- 1.Bf3?
- threat
- 2.Bxe4#
- 1...Qxc7+
- 2.Rxc7#
- 1...c4
- 2.Qxc4#
- 1...exf3!
- threat
- 1.Bf5?
- threat
- 2.Bxe4#
- 1...Qxc7+
- 2.Rxc7#
- 1...c4
- 2.Qxc4#
- 1...e3
- 2.Be4#
- 1...exf5!
- threat
- 1.Bf3?
- Keys
- 1.Ra6!
- 1...Qxc7+
- 2.bxc7#
- 1...Qxa6
- 2.cxd8S#
- 1...Qxb6
- 2.c8Q#
- 1...Qc8
- 2.b7#
- 1...Qa7
- 2.bxa7#
- 1...Qb8
- 2.b7#
- 1...c4
- 2.Qxc4#
- 1...e3
- 2.Bf3#
- 1...e5
- 2.Bd7#
- 1...Qxc7+
- 1.Ra6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(e);N_PINP(G)::PXS(h)=S
- Q(e);CHECK,OGATE,XP(G)::R1(F),XQ(e)
- Q(e);N_PINP(G)::PXQ(e)=S
- P(a);OGATEB::B(B)
- P(b);OGATEB::QAR2(A),XP(b)
- P(d);OGATE::B(B)
- Tries
- Try
- B(B);P_PINP(a)
- Threat
- B(B),XP(a)
- Vars
- Q(e);CHECK,OGATE,XP(G)::R1(F),XQ(e)
- P(b);OGATEB::QAR2(A),XP(b)
- Refutation
- P(a);N_SPINP(a),XB(B)
- Try
- B(B);
- Threat
- B(B),XP(a)
- Vars
- Q(e);CHECK,OGATE,XP(G)::R1(F),XQ(e)
- P(b);OGATEB::QAR2(A),XP(b)
- P(a);::B(B)
- Refutation
- P(d);XB(B)
- Try
- Actual
- R(F);
- Vars
- Q(e);CHECK,OGATE,XP(G)::R(F)+P(D),XQ(e)
- Q(e);N_PINP(G),XR(F)::PXS(h)=S
- Q(e);N_PINP(G),P_SPINQ(e),XP(D)::P=Q
- Q(e);N_PINP(G),OGATE::R(F)+P(D)
- Q(e);OGATE::R(F)+P(D),XQ(e)
- P(b);OGATEB::QAR2(A),XP(b)
- P(a);OGATEB::B(B)
- P(d);OGATE::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).