MESON Chess Problem Database

Problem Display
PID: 45477 (3K4/B3p3/3Qp1N1/8/2P1k1P1/r2rNn2/2B1nR2/b7 w - - 0 1)

Eerkes, Allard Pieter

5th Comm., BCF 051. Ty., 1945-1946

3K4/B3p3/3Qp1N1/8/2P1k1P1/r2rNn2/2B1nR2/b7

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Bxd3#
      • 2.Qxd3#
    • 1...Ra4
      • 2.Bxd3#
      • 2.Qxd3#
    • 1...Ra5
      • 2.Bxd3#
      • 2.Qxd3#
    • 1...Ra6
      • 2.Bxd3#
      • 2.Qxd3#
    • 1...Rxa7
      • 2.Qxd3#
    • 1...Bc3
      • 2.Bxd3#
      • 2.Qxd3#
    • 1...Sc3
      • 2.Bxd3#
      • 2.Qxd3#
    • 1...Sed4
      • 2.Qf4#
    • 1...Sfd4
      • 2.Qe5#
    • 1...e5
      • 2.Qd5#
  • Keys
    • 1.Sf1!
      • threat
        • 2.Rxe2#
      • 1...Bd4
        • 2.Qc6#
      • 1...Sc1
        • 2.Sg3#
      • 1...Seg1
        • 2.Sg3#
      • 1...Sc3
        • 2.Sg3#
        • 2.Bxd3#
        • 2.Qxd3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Sed4
        • 2.Qf4#
      • 1...Sf4
        • 2.Sg3#
      • 1...Se1
        • 2.Sd2#
      • 1...Sfg1
        • 2.Sd2#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Sfd4
        • 2.Qe5#
      • 1...Sh4
        • 2.Sd2#
      • 1...Se5
        • 2.Sd2#
      • 1...Sg5
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD,XB(H)::QAB1(F),XR(d)
    • S(b);N_PINQ(F)::QAR1(F)
    • S(e);N_PINQ(F)::QAR1(F)
    • P(g);N_GUARD::QAB1(F)
  • Actual
    • S(C);
    • Threat
      • R(B),XS(b)
    • Vars
      • B(a);N_PINQ(F)::QAB(F)
      • S(b);N_GUARD::S(C)
      • S(b);N_GUARD::S(C),XS(b)
      • S(b);N_PINQ(F)::QAR1(F)
      • S(e);N_GUARD::S(C)
      • S(e);N_GUARD::S(C),XS(e)
      • S(e);N_PINQ(F)::QAR1(F)
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