MESON Chess Problem Database
Problem Display
PID: 164712 (3K4/4p3/4p2N/R4pQ1/4k3/1N2rp2/1bP1b3/1B2R2n w - - 0 1)
Fichtner, Wolfgang
Die Schwalbe, 1969
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxb3
- 2.c3#
- 1...Rd3+
- 2.cxd3#
- 1...Bd4
- 2.Sd2#
- 1...Bd1
- 2.Rxe3#
- 2.Qxe3#
- 1...Bf1
- 2.Rxe3#
- 2.Qxe3#
- 1...Bd3
- 2.Rxe3#
- 2.Qxe3#
- 2.cxd3#
- 1...Bc4
- 2.Rxe3#
- 2.Qxe3#
- 1...Ba6
- 2.Rxe3#
- 2.Qxe3#
- 2.c4#
- 1...f4
- 2.Qg6#
- 1...e5
- 2.Qxf5#
- 1...Rxb3
- Tries
- 1.Sxf5?
- threat
- 2.Sd2#
- 2.Qxe3#
- 2.Qh4#
- 2.Qg4#
- 1...Rd3+
- 2.cxd3#
- 1...Rxb3
- 2.Qh4#
- 2.Qg4#
- 2.cxb3#
- 2.c3#
- 1...exf5
- 2.Qxf5#
- 1...f2
- 2.Sd2#
- 2.Qxe3#
- 1...Rc3
- 2.Sd2#
- 2.Qh4#
- 2.Qg4#
- 1...Bc1
- 2.Qh4#
- 2.Qg4#
- 1...Bc3
- 2.Qxe3#
- 2.Qh4#
- 2.Qg4#
- 1...Bd4
- 2.Sd2#
- 2.Qh4#
- 2.Qg4#
- 1...Be5
- 2.Sd2#
- 1...Bf6
- 2.Sd2#
- 2.Qxe3#
- 2.Qg4#
- 1...Sf2
- 2.Sd2#
- 2.Sg3#
- 2.Qxe3#
- 1...e5
- 2.Sd2#
- 2.Qg4#
- 1...Bb5!
- threat
- 1.Rxf5?
- threat
- 2.Rf4#
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 1...Rd3+
- 2.cxd3#
- 1...Rxb3
- 2.Qf4#
- 2.c3#
- 1...exf5
- 2.Qxf5#
- 1...Be5
- 2.Rxe5#
- 1...Rc3
- 2.Re5#
- 2.Qf4#
- 1...Bf6
- 2.Rf4#
- 2.Qf4#
- 2.Qg4#
- 1...Sf2
- 2.Rf4#
- 2.Qf4#
- 1...f2
- 2.Rf4#
- 2.Qf4#
- 1...e5!
- threat
- 1.Qg4+?
- 1...f4
- 2.Qg6#
- 1...fxg4!
- 1...f4
- 1.c3+?
- 1...Bd3
- 2.Sd2#
- 2.Rxe3#
- 2.Qxe3#
- 1...Rd3+!
- 1...Bd3
- 1.c4+?
- 1...Bd3
- 2.Rxe3#
- 2.Qxe3#
- 1...Rd3+!
- 1...Bd3
- 1.Sxf5?
- Keys
- 1.Sg4!
- threat
- 2.Qxe3#
- 1...Rd3+
- 2.cxd3#
- 1...Rxb3
- 2.c3#
- 1...fxg4
- 2.Qxg4#
- 1...Bb5
- 2.c4#
- 1...Rc3
- 2.Re5#
- 1...Bc1
- 2.Re5#
- 1...Bd4
- 2.Sd2#
- 1...f4
- 2.Qg6#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(d);N_GUARD,P_SPINB(c),XS(D)::B(A)+P(C)
- R(d);CHECK,OGATE,P_SPINB(c)::P(C),XR(d)
- B(b);SBLOCK::S(D)
- P(g);OGATEB,SBLOCK::QAB(F)
- P(h);N_GUARD::QAB1(F),XP(g)
- Tries
- Try
- S(G);XP(g)
- Threat
- DUALS(4)
- Vars
- R(d);CHECK,OGATE,P_SPINB(c)::P(C),XR(d)
- P(h);OGATE,XS(G)::QAB1(F),XP(h)
- B(b);::S(D)
- Refutation
- B(c);P_SPINR(d)
- Try
- R(E);XP(g)
- Threat
- DUALS(4)
- Vars
- R(d);CHECK,OGATE,P_SPINB(c)::P(C),XR(d)
- P(h);OGATE,XR(E)::QAB1(F),XP(h)
- B(b);N_GUARD::R1(E),XB(b)
- Refutation
- P(h);
- Try
- Q(F);CHECK
- Vars
- P(g);OGATEB,P_SPINP(g),SBLOCK::QAB(F)
- Refutation
- P(g);XQ(F)
- Try
- P(C);CHECK
- Refutation
- R(d);CHECK,P_SPINB(c),P_SPINR(d)
- Try
- P(C);CHECK
- Refutation
- R(d);CHECK,P_SPINB(c),P_SPINR(d)
- Try
- Actual
- S(G);
- Threat
- QAR1(F),XR(d)
- Vars
- R(d);CHECK,OGATE,P_SPINB(c)::P(C),XR(d)
- R(d);N_GUARD,P_SPINB(c),XS(D)::B(A)+P(C)
- P(g);OGATE,XS(G)::QAR2(F),XP(g)
- B(c);N_GUARD,P_SPINR(d)::B(A)+P(C)
- R(d);P_SPINB(c),S_CUTB(b)::R1(E)
- B(b);N_GUARD::R1(E)
- B(b);SBLOCK::S(D)
- P(g);OGATEB,SBLOCK::QAB(F)
Developed and maintained by Brian Stephenson.
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