MESON Chess Problem Database

Problem Display
PID: 2584 (5rr1/2QN3B/3np1nB/RN1p4/2p1kp2/3p1R2/p1P3K1/8 w - - 0 1)

Parthasarathy, Dr Mukkur

1st Prize, The Problemist, 1989/I

5rr1/2QN3B/3np1nB/RN1p4/2p1kp2/3p1R2/p1P3K1/8

#2

9 + 11

721 Variantim 1991
4640 Chess Wizardry: The New ABC of Chess Problems 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Rxf4#
    • 1...Sxb5
      • 2.Qe5#
    • 1...Sf5
      • 2.Sc5#
    • 1...Sb7
      • 2.Qe5#
    • 1...Sf7
      • 2.Qxf4#
    • 1...Sc8
      • 2.Qe5#
    • 1...Se8
      • 2.Qe5#
    • 1...d4
      • 2.Sxd6#
  • Tries
    • 1.Sc3+?
      • 1...Kf5
        • 2.Rxf4#
      • 1...Kd4!
    • 1.Qb6?
      • threat
        • 2.Sxd6#
      • 1...Kf5
        • 2.Rxf4#
      • 1...Sf5
        • 2.Sc3#
      • 1...Sb7
        • 2.Qxe6#
      • 1...Sf7
        • 2.Rxf4#
      • 1...Sc8
        • 2.Qxe6#
      • 1...Se8
        • 2.Qxe6#
      • 1...Sxb5!
    • 1.cxd3+?
      • 1...Kf5
        • 2.Rxf4#
      • 1...cxd3!
  • Keys
    • 1.c3!
      • threat
        • 2.Sxd6#
      • 1...Kf5
        • 2.Rxf4#
      • 1...Sxb5
        • 2.Qe5#
      • 1...Sf5
        • 2.Sc5#
      • 1...Sb7
        • 2.Qe5#
      • 1...Sf7
        • 2.Qxf4#
      • 1...Sc8
        • 2.Qe5#
      • 1...Se8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(d);P_SPINP(e),S_FLIGHT::R1(C),XP(e)
    • S(g);OGATE,XS(E)::QAR1(G)
    • S(g);N_SPINS(i),SBLOCK::S(H)
    • S(g);OGATE::QAR1(G)
    • S(g);OGATE::QAR1(G),XP(e)
    • P(f);SBLOCK::S(E),XS(g)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P_SPINP(e),S_FLIGHT::R1(C),XP(e)
      • Refutation
        • K(d);N_SPINS(i),P-FLIGHT
    • Try
      • Q(G);
      • Threat
        • S(E),XS(g)
      • Vars
        • K(d);P_SPINP(e),S_FLIGHT::R1(C),XP(e)
        • S(g);N_SPINS(i),SBLOCK::S(E)
        • S(g);OGATE::QAR2(G),XP(h)
        • S(g);S_CUTR(j)::R1(C),XP(e)
      • Refutation
        • S(g);XS(E)
    • Try
      • P(A);CHECK,XP(b)
      • Vars
        • K(d);P_SPINP(e),S_FLIGHT::R1(C),XP(e)
      • Refutation
        • P(c);XP(A)
  • Actual
    • P(A);
    • Threat
      • S(E),XS(g)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT::R1(C),XP(e)
      • S(g);OGATE,XS(E)::QAR1(G)
      • S(g);N_SPINS(i),SBLOCK::S(H)
      • S(g);OGATE::QAR1(G)
      • S(g);OGATE::QAR1(G),XP(e)
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