MESON Chess Problem Database

Problem Display
PID: 69403 (5K2/8/2p1P3/1Rp2N2/2k1rP2/2N1p3/4P3/Q6B w - - 0 1)

van Eelde, Antonie Clarus Johannes

2nd Prize, Tijdschrift vd NSB, 1897

5K2/8/2p1P3/1Rp2N2/2k1rP2/2N1p3/4P3/Q6B

#2

9 + 5

58 Tijdschrift vd NSB 1898

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sxe3#
  • Tries
    • 1.Sxe3+?
      • 1...Kd4
        • 2.Scd1#
        • 2.Scd5#
      • 1...Rxe3!
    • 1.Qb1?
      • threat
        • 2.Qd3#
        • 2.Qb3#
      • 1...Kxc3
        • 2.Qd3#
        • 2.Qc1#
      • 1...Rd4
        • 2.Qb3#
      • 1...cxb5!
    • 1.Qd1?
      • threat
        • 2.Qb3#
        • 2.Qd3#
      • 1...Kxc3
        • 2.Qc1#
        • 2.Qd3#
      • 1...Rd4
        • 2.Qb3#
      • 1...cxb5!
    • 1.Qa3?
      • threat
        • 2.Rxc5#
        • 2.Qxc5#
        • 2.Qb3#
      • 1...Re5
        • 2.Qb3#
      • 1...cxb5!
  • Keys
    • 1.Sd5!
      • 1...Kxb5
        • 2.Sd6#
      • 1...Kxd5
        • 2.Qa2#
      • 1...Rxf4
        • 2.Qa4#
      • 1...Rxe6
        • 2.Qa4#
      • 1...cxb5
        • 2.Qa2#
      • 1...cxd5
        • 2.Sd6#
      • 1...Rd4
        • 2.Sd6#
        • 2.Qa4#
      • 1...Re5
        • 2.Sd6#
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD,SBLOCK::S(G),XP(a)
  • Tries
    • Try
      • S(G);CHECK,XP(a)
      • Refutation
        • R(c);XS(G)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::QAB1(A)
      • Refutation
        • P(e);XR(F)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::QAB1(A)
      • Refutation
        • P(e);XR(F)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • R(c);::QAB1(A)
      • Refutation
        • P(e);XR(F)
  • Actual
    • S(D);
    • Vars
      • K(b);S_FLIGHT,XR(F)::S(G)
      • K(b);P_SPINP(d),P_SPINR(c),S_FLIGHT,XS(D)::QAB(A)
      • R(c);P_PINS(G),XP(E)::QAR2(A)
      • R(c);XP(H)::QAR2(A)
      • P(e);SBLOCK,XR(F)::QAB(A)
      • P(e);SBLOCK,XS(D)::S(G)
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