MESON Chess Problem Database
Problem Display
PID: 185370 (8/3p2NB/5R1K/5pR1/4k1pN/q7/3Q3P/3b4 w - - 0 1)
Drese, Gerardus Hendrikus
diagrammes, 1974
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...d5
- 2.Re6#
- 1...d6
- 2.Re6#
- 1...d5
- Tries
- 1.Shxf5?
- threat
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Se7#
- 1...Qh3+
- 2.Sh4#
- 1...Kf3
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Se7#
- 1...Ke5
- 2.Qd4#
- 1...Qe3
- 2.Sxe3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Se7#
- 1...Qc5
- 2.Sg3#
- 2.Sd6#
- 1...Qd6
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sxd6#
- 2.Se7#
- 1...Qe7
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sxe7#
- 1...Qf3
- 2.Sg3#
- 2.Sd6#
- 2.Qd4#
- 1...Qg3
- 2.Se3#
- 2.Sxg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Se7#
- 1...Qa5
- 2.Sg3#
- 2.Sd6#
- 1...g3
- 2.Se3#
- 2.Sxg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Se7#
- 1...d6
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sxd6#
- 2.Se7#
- 1...Qd3!
- threat
- 1.Sgxf5?
- threat
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 2.Qd4#
- 1...Qf8+
- 2.Sg7#
- 1...Ke5
- 2.Qd4#
- 1...Qe3
- 2.Sxe3#
- 2.Sg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 1...Qb2
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 1...Qb4
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 1...Qc5
- 2.Sg3#
- 2.Sd6#
- 1...Qd6
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sxd6#
- 2.Se7#
- 2.Sg7#
- 1...Qe7
- 2.Sg3#
- 2.Sd6#
- 2.Sxe7#
- 2.Sg7#
- 2.Qd4#
- 1...Qa1
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 1...Qc3
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 1...Qf3
- 2.Sg3#
- 2.Sd6#
- 2.Qd4#
- 1...Qg3
- 2.Se3#
- 2.Sxg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 2.Qd4#
- 1...Qa4
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 1...Qa5
- 2.Sg3#
- 2.Sd6#
- 2.Qd4#
- 1...Qa7
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 1...g3
- 2.Se3#
- 2.Sxg3#
- 2.Sd4#
- 2.Sd6#
- 2.Se7#
- 2.Sg7#
- 2.Qd4#
- 1...d6
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sxd6#
- 2.Se7#
- 2.Sg7#
- 2.Re6#
- 2.Qd4#
- 1...Qd3!
- threat
- 1.Rxg4+?
- 1...Ke5
- 2.Rxf5#
- 2.Qd4#
- 1...Bxg4!
- 1...Ke5
- 1.Rgxf5?
- threat
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Rg5#
- 2.Rh5#
- 1...Qe3+
- 2.Rg5#
- 1...Qd3
- 2.Qf4#
- 1...Qc5
- 2.Rxc5#
- 2.Rd5#
- 1...Qa5
- 2.Rxa5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 1...d5
- 2.Rxd5#
- 2.Rg5#
- 2.Rh5#
- 2.Re6#
- 1...Qf3!
- threat
- 1.Shxf5?
- Keys
- 1.Rfxf5!
- threat
- 2.Rf1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 1...Qd6+
- 2.Rf6#
- 1...Qa6+
- 2.Rf6#
- 1...Qd3
- 2.Rf4#
- 2.Rd5#
- 2.Qf4#
- 1...Qc5
- 2.Rf4#
- 2.Rxc5#
- 2.Rd5#
- 2.Re5#
- 1...Qf8
- 2.Rf4#
- 2.Re5#
- 2.Rf6#
- 2.Rf7#
- 2.Rxf8#
- 1...Qe3
- 2.Rf1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 2.Qd5#
- 1...Qf3
- 2.Rxf3#
- 2.Rf4#
- 2.Re5#
- 1...Qa5
- 2.Rf4#
- 2.Rxa5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 1...Bf3
- 2.Rxf3#
- 2.Rf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rd5#
- 2.Re5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 1...d5
- 2.Rf1#
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rxd5#
- 2.Re5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- threat
- 1.Rfxf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- P(f);N_GUARD::R(E)
- Tries
- Try
- S(C);XP(e)
- Threat
- DUALS(6)
- Vars
- Q(b);CHECK::B(H)+S(C)
- K(c);P-FLIGHT::QAB1(A)
- Refutation
- Q(b);
- Try
- S(G);XP(e)
- Threat
- DUALS(7)
- Vars
- Q(b);CHECK::B(H)+S(G)
- K(c);P-FLIGHT::QAB1(A)
- Refutation
- Q(b);
- Try
- R(D);CHECK,XP(d)
- Refutation
- B(a);XR(D)
- Try
- R(D);XP(e)
- Threat
- DUALS(6)
- Vars
- Q(b);CHECK::B(H)+R(D)
- Q(b);SBLOCK::QAR1(A)
- Refutation
- Q(b);
- Try
- Actual
- R(E);XP(e)
- Threat
- DUALS(12)
- Vars
- Q(b);CHECK::B(H)+R(E)
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