MESON Chess Problem Database

Problem Display
PID: 204319 (B3R2b/7Q/2N1q1PN/R3p1p1/4kP2/8/n3PP2/K7 w - - 0 1)

Ellerman, Arnoldo

2nd HM., Centurini/Guidelli MT, 1925

B3R2b/7Q/2N1q1PN/R3p1p1/4kP2/8/n3PP2/K7

#2

11 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...exf4+
      • 2.g7#
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qe3#
      • 1...exf4+
        • 2.Sd4#
      • 1...Kxf4
        • 2.Qe3#
      • 1...gxf4
        • 2.f3#
      • 1...Qb3
        • 2.Qd4#
      • 1...Qh3
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);CHECK,P_SPINQ(e),SBLOCK,XP(D)::QAB(I)+P(G)
  • Actual
    • Q(I);
    • Threat
      • QAR1(I)
    • Vars
      • P(c);CHECK,P_SPINQ(e),SBLOCK,XP(D)::B(J)+S(F)
      • K(b);P-FLIGHT,XP(D)::QAB1(I)
      • P(d);SBLOCK,XP(D)::P(C)
      • Q(e);P_SPINP(c)::QAR1(I)
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