MESON Chess Problem Database

Problem Display
PID: 121713 (3QbR1b/B7/2B1pr2/2rnpP2/5k1P/6NK/3n4/4R1N1 w - - 0 1)

Stocchi, Ottavio

Magyar Sakkvilag, 1952

3QbR1b/B7/2B1pr2/2rnpP2/5k1P/6NK/3n4/4R1N1

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Qg5#
    • 1...Rg6
      • 2.Sh5#
    • 1...Rh6
      • 2.Qg5#
    • 1...Rf7
      • 2.Qg5#
    • 1...Rxf8
      • 2.Qg5#
    • 1...Sb1
      • 2.Re4#
    • 1...Sf1
      • 2.Re4#
    • 1...Sb3
      • 2.Re4#
    • 1...Sf3
      • 2.Re4#
    • 1...Sc4
      • 2.Re4#
    • 1...Se4
      • 2.Rxe4#
    • 1...Sc3
      • 2.Qxd2#
    • 1...Se3
      • 2.S1e2#
    • 1...Sb4
      • 2.Qxd2#
    • 1...Sb6
      • 2.Qxd2#
    • 1...Sc7
      • 2.Qxd2#
    • 1...Se7
      • 2.Qxd2#
  • Keys
    • 1.Bb8!
      • threat
        • 2.Bxe5#
      • 1...Rxf5
        • 2.Qg5#
      • 1...Rxf8
        • 2.Qg5#
      • 1...Rg6
        • 2.Sh5#
      • 1...Rh6
        • 2.Qg5#
      • 1...Rf7
        • 2.Qg5#
      • 1...Sf3
        • 2.Re4#
      • 1...Sc4
        • 2.Re4#
      • 1...Se4
        • 2.Rxe4#
      • 1...Sc3
        • 2.Qxd2#
      • 1...Se3
        • 2.S1e2#
      • 1...Sb4
        • 2.Qxd2#
      • 1...Sb6
        • 2.Qxd2#
      • 1...Sc7
        • 2.Qxd2#
      • 1...Se7
        • 2.Qxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(g);OGATE,P_SPINR(g),XP(F)::QAB1(I)
    • R(g);S_CUTB(h)::S(C)
    • R(g);OGATE,P_PINP(E)::QAB1(I)
    • R(g);OGATE::QAB1(I)
    • R(g);OGATE,XR(J)::QAB1(I)
    • S(a);N_GUARD::R1(A)
    • S(a);N_GUARD::R1(A),XS(a)
    • S(d);OGATE::QAB(I),XS(a)
    • S(d);SBLOCK::S(B)
  • Actual
    • B(H);P_PINP(e)
    • Threat
      • B(H),XP(e)
    • Vars
      • R(g);OGATE,P_SPINR(g),XP(F)::QAB1(I)
      • R(g);OGATE,XR(J)::QAB1(I)
      • R(g);S_CUTB(h)::S(C)
      • R(g);OGATE,P_PINP(E)::QAB1(I)
      • R(g);OGATE::QAB1(I)
      • S(a);N_GUARD::R1(A)
      • S(a);N_GUARD::R1(A),XS(a)
      • S(d);OGATE::QAB(I),XS(a)
      • S(d);SBLOCK::S(B)
      • S(d);N_SPINP(e),OGATE::QAB(I),XS(a)
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