MESON Chess Problem Database
Problem Display
PID: 71608 (8/p2K2p1/8/1n1k1n2/NP1p1PN1/1PpRpP2/2PpP3/3R4 w - - 0 1)
Chernet, R
diagrammes, 1975
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Sxc3#
- 1...Sbd6
- 2.Sxc3#
- 1...Sc7
- 2.Sxc3#
- 1...Sg3
- 2.Sxe3#
- 1...Sh4
- 2.Sxe3#
- 1...Sfd6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Se7
- 2.Sxe3#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sa3
- Tries
- 1.Rxd4+?
- 1...Sbxd4
- 2.Sxc3#
- 1...Sfxd4
- 2.Sxe3#
- 1...Kxd4!
- 1...Sbxd4
- 1.Rxd4+?
- Keys
- 1.R1xd2!
- 1...cxd2
- 2.c4#
- 1...exd2
- 2.e4#
- 1...Sa3
- 2.Sxc3#
- 1...Sbd6
- 2.Sxc3#
- 1...Sc7
- 2.Sxc3#
- 1...Sg3
- 2.Sxe3#
- 1...Sh4
- 2.Sxe3#
- 1...Sfd6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Se7
- 2.Sxe3#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...cxd2
- 1.R1xd2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::S(G),XP(b)
- S(g);N_GUARD::S(J),XP(c)
- P(h);N_GUARD::S(G)
- P(i);N_GUARD::S(J)
- Tries
- Try
- R(E);CHECK,XP(d)
- Vars
- S(e);SBLOCK,XR(E)::S(G),XP(b)
- S(g);SBLOCK,XR(E)::S(J),XP(c)
- Refutation
- K(f);P-FLIGHT,P_SPINP(a),XR(E)
- Try
- Actual
- R(A);XP(a)
- Vars
- P(b);OGATE,XR(A)::P(B)
- P(c);OGATE,XR(A)::P(C)
- S(e);N_GUARD::S(G),XP(b)
- S(g);N_GUARD::S(J),XP(c)
- P(h);N_GUARD::S(G)
- P(i);N_GUARD::S(J)
Developed and maintained by Brian Stephenson.
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