MESON Chess Problem Database
Problem Display
PID: 29887 (Q7/2N5/1PP2b2/3P1K2/1nrkN3/2p3R1/4B3/8 w - - 0 1)
Zirkwitz, Thorsten
Schach-Echo, 1989
#2
9 + 5
SOLUTION
- SOUND
- Sets
- 1...Bh8
- 2.Qxh8#
- 1...Sa2
- 2.Rd3#
- 1...Sc2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sxd5
- 2.Sb5#
- 2.Se6#
- 2.Rd3#
- 1...Sa6
- 2.Rd3#
- 1...Sxc6
- 2.Rd3#
- 1...Bh8
- Tries
- 1.Qa1?
- threat
- 2.Qg1#
- 1...Sxd5
- 2.Sb5#
- 2.Se6#
- 2.Rd3#
- 2.Qd1#
- 1...Sc2
- 2.Rd3#
- 2.Qd1#
- 1...Sd3
- 2.Rxd3#
- 1...Bg5!
- threat
- 1.Qa5?
- threat
- 2.Se6#
- 1...Rc5
- 2.Qxc5#
- 1...Rxc6!
- threat
- 1.Qd8?
- threat
- 2.Sb5#
- 2.Se6#
- 2.Qxf6#
- 1...Rxc6
- 2.Sb5#
- 1...Sxd5
- 2.Sb5#
- 2.Se6#
- 2.Rd3#
- 2.Qxd5#
- 1...Sxc6
- 2.Sb5#
- 2.Se6#
- 2.Rd3#
- 1...Rc5
- 2.Se6#
- 2.Qxf6#
- 1...Bh4
- 2.Sb5#
- 2.Se6#
- 1...Be5
- 2.Sb5#
- 2.Se6#
- 1...Bg5
- 2.Sb5#
- 2.Se6#
- 1...Be7
- 2.Sb5#
- 2.Se6#
- 1...Bg7
- 2.Sb5#
- 2.Se6#
- 1...Bh8
- 2.Sb5#
- 2.Se6#
- 2.Qxh8#
- 1...Sd3
- 2.Sb5#
- 2.Se6#
- 2.Rxd3#
- 1...Bxd8!
- threat
- 1.Qa1?
- Keys
- 1.Qa2!
- threat
- 2.Qxc4#
- 1...Rxc6
- 2.Sb5#
- 1...Sxa2
- 2.Rd3#
- 1...Rc5
- 2.Se6#
- 1...Sd3
- 2.Rxd3#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- B(e);OGATEB::QAB(I),XB(e)
- S(b);N_GUARD::R1(B)
- S(b);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD,XP(G)::R1(B)
- Tries
- Try
- Q(I);P_PINP(a)
- Threat
- QAB(I)
- Vars
- S(b);N_GUARD::R1(B),XS(b)
- Refutation
- B(e);
- Try
- Q(I);
- Threat
- S(H)
- Vars
- R(c);N_GUARD,P_PINP(D)::QAB1(I),XR(c)
- Refutation
- R(c);XP(G)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- R(c);XP(G)::S(H)
- Refutation
- B(e);XQ(I)
- Try
- Actual
- Q(I);
- Threat
- QAR1(I),XR(c)
- Vars
- R(c);XP(G)::S(H)
- S(b);N_GUARD,XQ(I)::R1(B)
- R(c);P_PINP(D)::S(H)
- S(b);N_GUARD::R1(B),XS(b)
Developed and maintained by Brian Stephenson.
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