MESON Chess Problem Database
Problem Display
PID: 59507 (1BBN1Rq1/3nrbp1/1pR3pP/4PkP1/2Q3pP/3Ppr2/KP6/8 w - - 0 1)
Hirschenson, Aaron
The Problemist, 2005
#2
13 + 11
SOLUTION
- SOUND
- Sets
- 1...Re6
- 2.Qe4#
- 1...gxh6
- 2.Rf6#
- 1...Re6
- Tries
- 1.Bxd7+?
- 1...Re6
- 2.Bxe6#
- 2.Qe4#
- 1...Rxd7!
- 1...Re6
- 1.Re6?
- threat
- 2.Qe4#
- 1...Sc5
- 2.Rf6#
- 1...Sf6
- 2.Rxf6#
- 1...Rf4!
- threat
- 1.Rxf7+?
- 1...Rxf7
- 2.Qe4#
- 1...Qxf7!
- 1...Rxf7
- 1.e6?
- threat
- 2.Qe4#
- 1...Rxe6
- 2.Qxe6#
- 1...Rf4
- 2.Qxf4#
- 1...Sc5
- 2.Qd5#
- 1...Sf6!
- threat
- 1.hxg7?
- threat
- 2.Rf6#
- 1...Re6
- 2.Qe4#
- 1...Qxg7!
- threat
- 1.Bxd7+?
- Keys
- 1.Se6!
- threat
- 2.Qe4#
- 1...Rf4
- 2.Qxf4#
- 1...Sc5
- 2.Sxg7#
- 1...Sf6
- 2.Sxg7#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- R(h);N_PINQ(D),N_SPINS(g)::QAB1(D)
- P(j);N_GUARD,XP(I)::R1(H)
- Tries
- Try
- B(K);CHECK,XS(g)
- Refutation
- R(h);XB(K)
- Try
- R(H);N_PINS(g),N_SPINQ(D)
- Threat
- QAB1(D)
- Vars
- S(g);::B(K)+R(H),DCHECK
- S(g);N_SPINB(i)::B(K)+R(H),DCHECK,XS(g)
- Refutation
- R(b);
- Try
- R(M);CHECK,N_SPINQ(D),XB(i)
- Vars
- R(h);XR(M)::QAB1(D)
- Refutation
- Q(k);P_PINQ(D),XR(M)
- Try
- P(F);N_PINS(g),N_SPINQ(D)
- Threat
- QAB1(D)
- Vars
- R(h);OGATE,XP(F)::QAB1(D),XR(h)
- R(b);N_GUARD::QAR1(D),XR(b)
- S(g);N_GUARD::QAR2(D)
- Refutation
- S(g);N_SPINB(i)
- Try
- P(I);XP(j)
- Threat
- R1(H)
- Vars
- R(h);N_PINQ(D),N_SPINS(g)::QAB1(D)
- Refutation
- Q(k);XP(I)
- Try
- Actual
- S(L);N_PINS(g),N_SPINQ(D)
- Threat
- QAB1(D)
- Vars
- R(b);N_GUARD::QAR1(D),XR(b)
- S(g);::B(K)+S(L),DCHECK,XP(j)
- S(g);N_SPINB(i)::B(K)+S(L),DCHECK,XP(j)
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).