MESON Chess Problem Database

Problem Display
PID: 133902 (2r5/4pR1b/qNBRP3/3p4/1B1PkpNK/1Q2p3/1n4p1/8 w - - 0 1)

Parthasarathy, Dr Mukkur

The Field, 1962

(First published on Thu Aug 16 1962)

2r5/4pR1b/qNBRP3/3p4/1B1PkpNK/1Q2p3/1n4p1/8

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qxe3#
    • 1...Kxd4
      • 2.Qxd5#
    • 1...Qd3
      • 2.Qxd5#
    • 1...Sd3
      • 2.Qxd5#
    • 1...f3
      • 2.Qxe3#
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Rxf4#
      • 1...Kf3
        • 2.Qxe3#
      • 1...Kxd4
        • 2.Sxe7#
      • 1...Qf1
        • 2.Sc7#
      • 1...Rf8
        • 2.Sb6#
      • 1...Bf5
        • 2.Sdf6#
      • 1...Sd3
        • 2.Sc3#
      • 1...f3
        • 2.Rf4#
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • K(d);N_SPINP(f),P_SPINP(c),S_FLIGHT::QAR1(A),XP(c)
    • K(d);P-FLIGHT,XP(C)::QAR1(A),XP(f)
    • Q(g);SBLOCK::QAB1(A),XP(f)
    • S(a);SBLOCK::QAB1(A),XP(f)
    • P(e);N_GUARD::QAR1(A),XP(c)
  • Actual
    • S(F);XP(f)
    • Threat
      • R1(J),XP(e)
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT::QAR1(A),XP(c)
      • K(d);P-FLIGHT,XP(C)::R(H)+S(F),XP(h)
      • Q(g);N_GUARD::B(G)+S(F)
      • R(j);N_GUARD::B(G)+S(F)
      • B(i);SBLOCK::B(G)+S(F),DCHECK
      • S(a);SBLOCK::B(G)+S(F),DCHECK
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