MESON Chess Problem Database
Problem Display
PID: 265887 (5B2/pp1N3K/5pP1/N1pk4/Bp1pR2b/3Q1Rn1/3n4/1r1q2r1 w - - 0 1)
Parthasarathy, Dr Mukkur
The Problemist, 1996
#2
9 + 13
SOLUTION
- SOUND
- Sets
- 1...Sdxe4
- 2.Qc4#
- 1...Sf1
- 2.Rf5#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sh5
- 2.Rf5#
- 1...c4
- 2.Qxd4#
- 1...f5
- 2.Re5#
- 1...a6
- 2.Sb6#
- 1...b6
- 2.Bc6#
- 1...Sdxe4
- Tries
- 1.Sxc5?
- threat
- 2.Qxd4#
- 1...Sxf3
- 2.Qc4#
- 1...Sgxe4
- 2.Rf5#
- 1...Sdf1
- 2.Qc4#
- 1...Sb3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sdxe4!
- threat
- 1.Rxd4+?
- 1...Ke6
- 2.Rd6#
- 1...cxd4!
- 1...Ke6
- 1.g7?
- threat
- 2.g8Q#
- 2.g8B#
- 1...Qxf3
- 2.g8Q#
- 2.g8B#
- 1...Qxa4
- 2.g8Q#
- 2.g8B#
- 1...Sxf3
- 2.g8Q#
- 2.g8B#
- 1...Sdxe4
- 2.Qc4#
- 2.g8Q#
- 2.g8B#
- 1...Qc2
- 2.g8Q#
- 2.g8B#
- 1...Qe2
- 2.g8Q#
- 2.g8B#
- 1...Qb3
- 2.g8Q#
- 2.g8B#
- 1...Qc1
- 2.g8Q#
- 2.g8B#
- 1...Qe1
- 2.g8Q#
- 2.g8B#
- 1...Qf1
- 2.g8Q#
- 2.g8B#
- 1...Ra1
- 2.g8Q#
- 2.g8B#
- 1...Rc1
- 2.g8Q#
- 2.g8B#
- 1...Rb2
- 2.g8Q#
- 2.g8B#
- 1...Rb3
- 2.g8Q#
- 2.g8B#
- 1...Re1
- 2.g8Q#
- 2.g8B#
- 1...Rf1
- 2.g8Q#
- 2.g8B#
- 1...Rh1
- 2.g8Q#
- 2.g8B#
- 1...Rg2
- 2.g8Q#
- 2.g8B#
- 1...Bg5
- 2.g8Q#
- 2.g8B#
- 1...Sdf1
- 2.g8Q#
- 2.g8B#
- 1...Sb3
- 2.g8Q#
- 2.g8B#
- 1...Sc4
- 2.g8Q#
- 2.g8B#
- 1...Sgf1
- 2.Rf5#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sh5
- 2.Rf5#
- 1...b3
- 2.g8Q#
- 2.g8B#
- 1...c4
- 2.Qxd4#
- 2.g8Q#
- 2.g8B#
- 1...f5
- 2.Re5#
- 2.g8Q#
- 2.g8B#
- 1...a6
- 2.Sb6#
- 2.g8Q#
- 2.g8B#
- 1...b5
- 2.g8Q#
- 2.g8B#
- 1...b6
- 2.Bc6#
- 2.g8Q#
- 2.g8B#
- 1...Sgxe4!
- threat
- 1.Sxc5?
- Keys
- 1.Qa6!
- threat
- 2.Qxb7#
- 2.Qe6#
- 1...Kxe4
- 2.Qxb7#
- 1...Qxa4
- 2.Qe6#
- 1...Sdxe4
- 2.Qc4#
- 1...Sgxe4
- 2.Rf5#
- 1...bxa6
- 2.Bc6#
- 1...b5
- 2.Qb7#
- 2.Qc6#
- 2.Qe6#
- 1...b6
- 2.Bc6#
- 2.Qb7#
- threat
- 1.Qa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- S(d);N_GUARD,SBLOCK,XR(D)::QAB1(A)
- S(e);N_GUARD::R(B)
- S(e);N_GUARD::R(B),XS(e)
- P(i);N_GUARD::QAR1(A),XP(g)
- P(k);N_GUARD::R1(D)
- P(l);N_GUARD::S(G)
- P(m);N_GUARD::B(C)
- Tries
- Try
- S(G);XP(i)
- Threat
- QAR1(A),XP(g)
- Vars
- S(d);N_GUARD,XR(B)::QAB1(A)
- S(e);N_GUARD,XR(D)::R(B)
- S(d);N_GUARD::QAB1(A)
- S(d);N_GUARD::QAB1(A),XS(d)
- S(e);N_GUARD::R(B)
- S(e);N_GUARD::R(B),XS(e)
- Refutation
- S(d);XR(D)
- Try
- R(D);CHECK,XP(g)
- Vars
- K(j);OGATE,S_FLIGHT::R1(D)
- Refutation
- P(i);P_SPINP(i),XR(D)
- Try
- P(F);
- Threat
- P=Q
- Vars
- Q(b);XR(B)::P=Q
- Q(b);XB(C)::P=Q
- S(d);XR(B)::P=Q
- Q(b);::P=Q
- R(a);::P=Q
- R(c);::P=Q
- B(h);::P=Q
- S(d);::P=Q
- S(e);N_GUARD::R(B)
- S(e);N_GUARD::R(B),XS(e)
- P(f);::P=Q
- P(m);::P=Q
- Refutation
- S(e);XR(D)
- Try
- Actual
- Q(A);N_PINP(g)
- Threat
- DUALS(2)
- Vars
- K(j);S_FLIGHT,XR(D)::QAB(A),XP(m)
- Q(b);XB(C)::QAB1(A)
- S(d);N_GUARD,SBLOCK,XR(D)::QAB1(A)
- S(e);N_GUARD,SBLOCK,XR(D)::R(B)
- P(m);N_GUARD,XQ(A)::B(C)
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