MESON Chess Problem Database
Problem Display
PID: 273948 (8/4bK2/3pN3/3pkp2/3p1p2/3PpP2/3B1Q1P/3n4 w - - 0 1)
Ivanic, Petar
Mat, 1972
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...exd2
- 2.Qxd4#
- 1...exf2
- 2.Bxf4#
- 1...e2
- 2.Bxf4#
- 2.Qxd4#
- 1...exd2
- Tries
- 1.Bc3?
- threat
- 2.Bxd4#
- 1...dxc3
- 2.d4#
- 1...Sxc3!
- threat
- 1.Bxe3?
- threat
- 2.Bxd4#
- 2.Bxf4#
- 1...dxe3
- 2.d4#
- 1...fxe3
- 2.f4#
- 1...Bg5
- 2.Bxd4#
- 1...Sxe3!
- threat
- 1.Qxe3+?
- 1...dxe3
- 2.d4#
- 1...fxe3
- 2.f4#
- 1...Sxe3!
- 1...dxe3
- 1.Qg3?
- threat
- 2.Qxf4#
- 1...fxg3
- 2.f4#
- 1...Bg5!
- threat
- 1.Bc3?
- Keys
- 1.Sxf4!
- threat
- 2.Sg6#
- 1...Kxf4
- 2.Qg3#
- threat
- 1.Sxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- P(b);OGATE,XB(A)::QAB1(B),XP(c)
- P(b);OGATE,XQ(B)::B(A),XP(d)
- Tries
- Try
- B(A);P_PINP(c)
- Threat
- B(A),XP(c)
- Vars
- P(c);N_SPINP(c),OGATE,XB(A)::P(D)
- Refutation
- S(a);N_SPINP(c),XB(A)
- Try
- B(A);XP(b)
- Threat
- DUALS(2)
- Vars
- P(c);OGATE,XB(A)::P(D)
- P(d);OGATE,XB(A)::P(E)
- B(i);::B(A),XP(c)
- Refutation
- S(a);XB(A)
- Try
- Q(B);CHECK,XP(b)
- Vars
- P(c);OGATE,XQ(B)::P(D)
- P(d);OGATE,XQ(B)::P(E)
- Refutation
- S(a);XQ(B)
- Try
- Q(B);P_PINP(d)
- Threat
- QAB1(B),XP(d)
- Vars
- P(d);N_SPINP(d),OGATE,XQ(B)::P(E)
- Refutation
- B(i);
- Try
- Actual
- S(F);XP(d)
- Threat
- S(F)
- Vars
- K(f);OGATEB,P_SPINP(b),S_FLIGHT,XS(F)::QAB1(B)
Developed and maintained by Brian Stephenson.
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