MESON Chess Problem Database

Problem Display
PID: 234365 (8/3B1N2/1p6/3k1p2/4Np2/1KPPq3/8/3Q4 w - - 0 1)

Ellerman, Arnoldo

Revista Romana de Sah, 1933

8/3B1N2/1p6/3k1p2/4Np2/1KPPq3/8/3Q4

#2

7 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Sf6#
    • 1...Qxd3
      • 2.Qxd3#
    • 1...fxe4
      • 2.Qh5#
  • Keys
    • 1.d4!
      • threat
        • 2.Sf6#
      • 1...Qxc3+
        • 2.Sxc3#
      • 1...Kxe4
        • 2.Bc6#
      • 1...Qxd4
        • 2.Qxd4#
      • 1...Qxe4
        • 2.c4#
      • 1...fxe4
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(a);SBLOCK::S(E)
    • Q(a);OGATE,P_PINP(C),P_SPINQ(a),XP(D)::QAR2(A),XQ(a)
    • P(d);OGATEB,XS(E)::QAR(A)
  • Actual
    • P(D);P_SPINP(C)
    • Threat
      • S(E)
    • Vars
      • Q(a);CHECK,XP(C)::S(E),XQ(a)
      • K(c);S_FLIGHT,XS(E)::B(F)
      • Q(a);N_PINP(C),OGATE,P_SPINQ(a),XP(D)::QAR1(A),XQ(a)
      • Q(a);N_PINP(C),SBLOCK,XS(E)::P(C)
      • P(d);OGATEB,SBLOCK,XS(E)::QAR(A)
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