MESON Chess Problem Database
Problem Display
PID: 230984 (7B/2Qnp1r1/4N3/1r1kNB2/Rn6/8/6p1/6K1 w - - 0 1)
Guida, Marco
The Problemist, 1988
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Rg3
- 2.Qxd7#
- 1...Rg4
- 2.Qxd7#
- 1...Rg5
- 2.Qxd7#
- 1...Rg6
- 2.Qxd7#
- 1...Rf7
- 2.Qxd7#
- 1...Rh7
- 2.Qxd7#
- 1...Rg8
- 2.Qxd7#
- 1...Sa2
- 2.Sf4#
- 2.Rd4#
- 1...Sc2
- 2.Sf4#
- 1...Sd3
- 2.Rd4#
- 1...Sa6
- 2.Sf4#
- 2.Rd4#
- 1...Rg3
- Tries
- 1.Sg4?
- threat
- 2.Se3#
- 1...Sc2
- 2.Sf4#
- 2.Qxd7#
- 1...Rxg4!
- threat
- 1.Sxd7?
- 1...Rc5
- 2.Sb6#
- 2.Qxc5#
- 1...Ra5
- 2.Sb6#
- 2.Rxa5#
- 1...Rb6
- 2.Sxb6#
- 2.Qc5#
- 1...Rb7
- 2.Qc5#
- 1...Rb8
- 2.Qc5#
- 1...Rg3
- 2.Sf4#
- 1...Rg5
- 2.Sf4#
- 1...Rg6
- 2.Sf4#
- 1...Rf7
- 2.Sf4#
- 1...Rh7
- 2.Sf4#
- 1...Rg8
- 2.Sf4#
- 1...Sa2
- 2.Sf4#
- 2.Rd4#
- 1...Sc2
- 2.Sf4#
- 1...Sd3
- 2.Rd4#
- 1...Sa6
- 2.Sf4#
- 2.Rd4#
- 1...Sc6
- 2.Sf4#
- 1...Rg4!
- 1...Rc5
- 1.Rxb4?
- threat
- 2.Sf4#
- 2.Rd4#
- 1...Rg4
- 2.Qc6#
- 2.Qxd7#
- 1...Rxb4!
- threat
- 1.Sg4?
- Keys
- 1.Sc4!
- threat
- 2.Se3#
- 1...Rg3
- 2.Sf4#
- 1...Sc2
- 2.Qxd7#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- R(g);::QAR2(F),XS(e)
- S(b);::S(E)
- S(b);OGATE::R1(B)
- Tries
- Try
- S(C);
- Threat
- S(C)
- Refutation
- R(g);XS(C)
- Try
- S(C);XS(e)
- Vars
- R(c);N_GUARD::QAR1(F)
- R(g);::S(E)
- S(b);::S(E)
- S(b);OGATE::R1(B)
- Refutation
- R(g);
- Try
- R(B);XS(b)
- Threat
- DUALS(2)
- Refutation
- R(c);XR(B)
- Try
- Actual
- S(C);
- Threat
- S(C)
- Vars
- R(g);::S(E)
- S(b);::QAR2(F),XS(e)
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