MESON Chess Problem Database
Problem Display
PID: 180649 (4n2B/3PQ3/1pRPb1N1/3k2p1/2Rp2P1/6n1/K1P1p3/3N1B2 w - - 0 1)
Ouellet, Charles
Problem Observer, 2012
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Bg2#
- 1...Bxg4
- 2.Qe5#
- 1...Bf5
- 2.Qe5#
- 1...Bxd7
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Bg8
- 2.Qe5#
- 1...Sh1
- 2.Bg2#
- 1...Sf5
- 2.Bg2#
- 1...Sh5
- 2.Bg2#
- 1...d3
- 2.Sc3#
- 2.Se3#
- 1...Ke4
- Tries
- 1.R6c5+?
- 1...Ke4
- 2.Bg2#
- 1...bxc5!
- 1...Ke4
- 1.Qxg5+?
- 1...Ke4
- 2.Bg2#
- 1...Sf5
- 2.Bg2#
- 1...Bf5!
- 1...Ke4
- 1.Qf6?
- threat
- 2.Qxd4#
- 2.Qe5#
- 1...Ke4
- 2.Bg2#
- 1...Bxg4
- 2.Qe5#
- 1...Bxd7
- 2.Qe5#
- 1...exd1Q
- 2.Qe5#
- 1...exd1R
- 2.Qe5#
- 1...e1Q
- 2.Qxd4#
- 1...e1R
- 2.Qxd4#
- 1...Bf5
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Bg8
- 2.Qe5#
- 1...Sf5
- 2.Bg2#
- 2.Qe5#
- 1...d3
- 2.Sc3#
- 2.Se3#
- 2.Se7#
- 2.Qd4#
- 2.Qe5#
- 1...Sxf6!
- threat
- 1.d8S?
- threat
- 2.Rxd4#
- 2.Qxe6#
- 1...Ke4
- 2.Bg2#
- 1...Bxg4
- 2.Rxd4#
- 2.Qe5#
- 1...exd1Q
- 2.Qxe6#
- 1...exd1R
- 2.Qxe6#
- 1...e1Q
- 2.Rxd4#
- 1...e1R
- 2.Rxd4#
- 1...Bf5
- 2.Rxd4#
- 2.Qe5#
- 1...Bd7
- 2.Rxd4#
- 2.Qe5#
- 1...Bf7
- 2.Rxd4#
- 2.Qe5#
- 1...Bc8
- 2.Rxd4#
- 2.Qe5#
- 1...Bg8
- 2.Rxd4#
- 2.Qe5#
- 1...Sf5
- 2.Bg2#
- 2.Qxe6#
- 1...Sf6
- 2.Qxe6#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Sc3#
- 2.Se3#
- 2.Rd4#
- 2.Qxe6#
- 1...Sg7!
- threat
- 1.R6c5+?
- Keys
- 1.dxe8Q!
- threat
- 2.Rxd4#
- 2.Qxe6#
- 1...Ke4
- 2.Bg2#
- 1...Bxg4
- 2.Rxd4#
- 2.Qe5#
- 1...exd1Q
- 2.Qxe6#
- 1...exd1R
- 2.Qxe6#
- 1...e1Q
- 2.Rxd4#
- 1...e1R
- 2.Rxd4#
- 1...Bf5
- 2.Rxd4#
- 2.Qe5#
- 1...Bd7
- 2.Qe5#
- 1...Bf7
- 2.Rxd4#
- 2.Q8xf7#
- 2.Qe5#
- 2.Q7xf7#
- 1...Bc8
- 2.Rxd4#
- 2.Qe5#
- 1...Bg8
- 2.Rxd4#
- 2.Qe5#
- 2.Qxg8#
- 1...Sf5
- 2.Bg2#
- 2.Qxe6#
- 1...d3
- 2.Sc3#
- 2.Se3#
- 2.Rd4#
- 2.Qxe6#
- threat
- 1.dxe8Q!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- K(d);P_PINR(E),P_SPINB(g),P_SPINP(c),S_FLIGHT::B(B)
- B(g);OGATE,XP(F)::QAR1(K)
- B(g);OGATE::QAR1(K)
- B(g);OGATE,XP(J)::QAR1(K)
- S(b);N_GUARD::B(B)
- Tries
- Try
- R(G);CHECK
- Vars
- K(d);P_PINR(E),P_SPINB(g),P_SPINP(c),S_FLIGHT::B(B)
- Refutation
- P(f);XR(G)
- Try
- Q(K);CHECK,XP(e)
- Vars
- K(d);P_PINR(E),P_SPINP(c),S_FLIGHT::B(B)
- S(b);P_SPINS(b)::B(B)
- Refutation
- B(g);P_SPINB(g)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- K(d);P_PINR(E),P_SPINP(c),S_FLIGHT::B(B)
- B(g);XP(F)::QAR1(K)
- B(g);XP(J)::QAR1(K)
- P(a);XS(A)::QAR1(K)
- P(a);::QAR1(K),XP(c)
- B(g);::QAR1(K)
- Refutation
- S(h);XQ(K)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- K(d);P_PINR(E),P_SPINB(g),P_SPINP(c),S_FLIGHT::B(B)
- P(a);XS(A)::QAB1(K),XB(g)
- P(a);::R1(E),XP(c)
- S(h);::QAB1(K),XB(g)
- S(h);::R1(E),XP(c)
- Refutation
- S(h);
- Try
- Actual
- P(J);XS(h)
- Threat
- DUALS(2)
- Vars
- K(d);P_PINR(E),P_SPINB(g),P_SPINP(c),S_FLIGHT::B(B)
- P(a);XS(A)::QAB1(K),XB(g)
- P(a);::R1(E),XP(c)
- B(g);OGATE::QAR1(K)
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).