MESON Chess Problem Database
Problem Display
PID: 8200 (2B5/q1p3p1/1pR5/r2P2pN/3Pk2n/pQ5n/K3p2r/B1N1R3 w - - 0 1)
Steiner, Paul
The Problemist, 1995
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Rxe2#
- 1...Rxd5
- 2.Qd3#
- 1...Sf2
- 2.Rxe2#
- 1...Sf4
- 2.Sg3#
- 1...Sf5
- 2.Re6#
- 1...Rh1
- Tries
- 1.Sxe2?
- threat
- 2.Sg3#
- 1...Rxe2+
- 2.Rxe2#
- 1...Sf5
- 2.Re6#
- 1...Rg2!
- threat
- 1.Bf5+?
- 1...Sxf5
- 2.Re6#
- 1...Kxf5!
- 1...Sxf5
- 1.Be6?
- threat
- 2.Qd3#
- 1...Sf2
- 2.Rxe2#
- 1...Sf4
- 2.Sg3#
- 1...Qa6!
- threat
- 1.Qe3+?
- 1...Kxd5
- 2.Qe6#
- 1...Kxe3!
- 1...Kxd5
- 1.Sxe2?
- Keys
- 1.Bg4!
- threat
- 2.Re6#
- 1...Rxd5
- 2.Qd3#
- 1...Sf4
- 2.Sg3#
- 1...Sf3
- 2.Qxf3#
- 1...Sg6
- 2.Qf3#
- threat
- 1.Bg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(b);N_GUARD::R(C),XP(a)
- R(g);SBLOCK,XP(G)::QAB1(E)
- S(d);S_CUTR(b)::R(C),XP(a)
- S(d);SBLOCK::S(H)
- S(f);SBLOCK::R(I)
- Tries
- Try
- S(B);P_SPINS(B),XP(a)
- Threat
- S(H)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XS(B)::R(C),XR(b)
- S(f);SBLOCK::R(I)
- Refutation
- R(b);
- Try
- B(J);CHECK
- Vars
- S(f);SBLOCK,XB(J)::R(I)
- Refutation
- K(e);N_SPINP(a),S_FLIGHT,XB(J)
- Try
- B(J);
- Threat
- QAB1(E)
- Vars
- S(d);S_CUTR(b)::R(C),XP(a)
- S(d);SBLOCK::S(H)
- Refutation
- Q(j);
- Try
- Q(E);CHECK,N_PINP(a)
- Vars
- K(e);OGATE,S_FLIGHT,XP(G)::QAB1(E)
- Refutation
- K(e);P-FLIGHT,P_SPINP(a),XQ(E)
- Try
- Actual
- B(J);
- Threat
- R(I)
- Vars
- R(g);SBLOCK,XP(G)::QAB1(E)
- S(d);SBLOCK::S(H)
- S(f);N_GUARD::QAB1(E),XS(f)
- S(f);N_GUARD::QAB1(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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