MESON Chess Problem Database

Problem Display
PID: 178543 (8/B3Q2K/1np1p2p/1p5r/3kN3/1B1NRP2/2r1PP1b/8 w - - 0 1)

Parthasarathy, Dr Mukkur

Busmen's Chess Review, 1966

8/B3Q2K/1np1p2p/1p5r/3kN3/1B1NRP2/2r1PP1b/8

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Qb4#
    • 1...Rb2
      • 2.Qb4#
    • 1...Rd2
      • 2.Qb4#
    • 1...Rxe2
      • 2.Qb4#
    • 1...e5
      • 2.Qd6#
      • 2.Qd8#
      • 2.Qd7#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qb4#
      • 1...Kxc3
        • 2.Qb4#
      • 1...Rxc3
        • 2.Re4#
      • 1...Rc5
        • 2.Qxc5#
      • 1...b4
        • 2.Qxb4#
      • 1...c5
        • 2.Sxb5#
      • 1...Bd6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qd6#
      • 1...Kxe5
        • 2.Qf6#
      • 1...Rxe5
        • 2.Rd3#
      • 1...Bxe5
        • 2.Rd3#
      • 1...Rc5
        • 2.Qxc5#
      • 1...c5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::QAR2(I)
    • R(a);N_GUARD,XP(A)::QAR2(I)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR2(I)
      • Vars
        • K(c);N_SPINS(f),S_FLIGHT,XS(G)::QAB1(I)
        • R(a);SBLOCK,XS(G)::R1(E)
        • R(e);N_GUARD,N_SPINS(f)::QAB1(I),XR(e)
        • P(d);::QAR2(I),XP(d)
        • P(g);N_GUARD,N_SPINS(f),S_CUTR(e)::S(G),XP(d)
      • Refutation
        • B(b);
  • Actual
    • S(D);
    • Threat
      • QAR2(I)
    • Vars
      • K(c);N_SPINS(f),OGATEB,P_SPINP(h),S_FLIGHT,XS(D)::QAB1(I)
      • R(e);SBLOCK,XS(D)::R1(E)
      • B(b);SBLOCK,XS(D)::R1(E)
      • R(a);N_GUARD,N_SPINS(f)::QAB1(I),XR(a)
      • P(g);N_SPINS(f),S_CUTR(a)::S(D)
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