MESON Chess Problem Database
Problem Display
PID: 147128 (2Q5/3p3n/8/3b4/2rBR3/1P1k4/2p3B1/2K5 w - - 0 1)
Lincoln, Robert A
Australian Chess Problem Magazine, 1997
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Qxc3#
- 1...Ra4
- 2.Qxc2#
- 2.Qc3#
- 1...Rb4
- 2.Qxc2#
- 2.Qc3#
- 1...Rxd4
- 2.Qxc2#
- 1...Bxe4
- 2.Qxc4#
- 1...Bb7
- 2.Qxc4#
- 1...Ba8
- 2.Qxc4#
- 1...d6
- 2.Qh3#
- 1...Rc3
- Tries
- 1.Qxd7?
- threat
- 2.Qh3#
- 1...Bxe4
- 2.Bf1#
- 1...Be6
- 2.Re3#
- 1...Sg5!
- threat
- 1.Qc5?
- threat
- 2.Re3#
- 1...Rxd4
- 2.Qxd4#
- 2.Qxc2#
- 1...Bxe4
- 2.Bf1#
- 2.Qxc4#
- 1...Rxc5!
- threat
- 1.Qe8?
- threat
- 2.Bf1#
- 1...Rxd4
- 2.Re3#
- 1...Bxe4
- 2.Qxe4#
- 1...Be6!
- threat
- 1.Qxd7?
- Keys
- 1.Qh8!
- threat
- 2.Re3#
- 1...Rxd4
- 2.Qxd4#
- 1...Bxe4
- 2.Bf1#
- 1...Sf6
- 2.Qh3#
- threat
- 1.Qh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(c);OGATE::QAR1(F),XR(c)
- R(c);OGATE,XB(D)::QAB1(F),XP(a)
- B(d);N_GUARD,XR(E)::QAB1(F),XR(c)
- B(d);N_GUARD::QAB1(F),XR(c)
- P(e);OGATE::QAR(F)
- Tries
- Try
- Q(F);XP(e)
- Threat
- QAR(F)
- Vars
- B(d);SBLOCK,XR(E)::B(B)
- B(d);::R1(E)
- Refutation
- S(f);
- Try
- Q(F);
- Threat
- R1(E)
- Refutation
- R(c);XQ(F)
- Try
- Q(F);
- Threat
- B(B)
- Vars
- R(c);SBLOCK,XB(D)::R1(E)
- B(d);OGATE,XR(E)::QAB1(F),XB(d)
- Refutation
- B(d);
- Try
- Actual
- Q(F);
- Threat
- R1(E)
- Vars
- R(c);OGATE,XB(D)::QAR1(F),XR(c)
- B(d);SBLOCK,XR(E)::B(B)
- S(f);OGATE::QAR(F)
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