MESON Chess Problem Database

Problem Display
PID: 64358 (B3K3/3P1p1b/2NN1R2/1p1kP2r/1P1b4/1n4n1/P4p2/3Q1q2 w - - 0 1)

Stocchi, Ottavio

1st HM., Springaren, 1952

B3K3/3P1p1b/2NN1R2/1p1kP2r/1P1b4/1n4n1/P4p2/3Q1q2

#2

10 + 10

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Qxb3#
    • 1...Qh3
      • 2.Qxb3#
    • 1...Qe1
      • 2.Qxb3#
    • 1...Qg1
      • 2.Qxb3#
    • 1...Qh1
      • 2.Qxb3#
    • 1...Rxe5+
      • 2.Se7#
    • 1...Sa1
      • 2.Qxd4#
    • 1...Sc1
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qxd4#
    • 1...Sc5
      • 2.Qxd4#
    • 1...Se2
      • 2.Qxb3#
    • 1...Sf5
      • 2.Qf3#
  • Keys
    • 1.Sxf7!
      • threat
        • 2.Sa5#
      • 1...Rxe5+
        • 2.Scxe5#
      • 1...Kc4
        • 2.Qxb3#
      • 1...Ke4
        • 2.Qf3#
      • 1...Qc4
        • 2.Se7#
      • 1...Sa5
        • 2.Sxa5#
        • 2.Qxd4#
      • 1...Sc5
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(a);N_GUARD::QAB(A),XS(c)
    • Q(a);N_GUARD,P_PINP(D)::QAB(A),XS(c)
    • R(h);CHECK,SBLOCK,XP(D)::B(I)+S(E),DCHECK
    • S(c);N_GUARD::QAR1(A),XB(e)
    • S(d);S_CUTQ(a)::QAB(A),XS(c)
    • S(d);N_GUARD,S_CUTB(j)::QAB(A)
  • Actual
    • S(F);XP(i)
    • Threat
      • B(I)+S(E)
    • Vars
      • R(h);CHECK,XP(D)::B(I)+S(E),XR(h)
      • K(g);N_SPINB(e),S_FLIGHT::QAB1(A),XS(c)
      • K(g);N_SPINB(e),S_FLIGHT::QAB1(A)
      • Q(a);SBLOCK::B(I)+S(E),DCHECK
      • S(c);N_GUARD::QAR1(A),XB(e)
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