MESON Chess Problem Database

Problem Display
PID: 114179 (8/p7/1bB2Q2/1R3n1q/1Bk2rN1/p2Np2p/b1P1nP2/3K4 w - - 0 1)

Stocchi, Ottavio

Chess Life, 1951

8/p7/1bB2Q2/1R3n1q/1Bk2rN1/p2Np2p/b1P1nP2/3K4

#2

9 + 11

14475 Mat Plus Review 2007
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Se5#
    • 1...Bd4
      • 2.Qe6#
    • 1...Ba5
      • 2.Rc5#
    • 1...Bc5
      • 2.Rxc5#
    • 1...Bc7
      • 2.Rc5#
    • 1...Bd8
      • 2.Rc5#
    • 1...Sc1
      • 2.Qc3#
    • 1...Sg1
      • 2.Qc3#
    • 1...Sc3+
      • 2.Qxc3#
    • 1...Seg3
      • 2.Qc3#
    • 1...Sed4
      • 2.Se5#
    • 1...Sfd4
      • 2.Sxe3#
  • Tries
    • 1.Be1?
      • threat
        • 2.Rb4#
      • 1...Sc3+
        • 2.Qxc3#
      • 1...Ba5
        • 2.Rc5#
      • 1...Bc5
        • 2.Rxc5#
      • 1...a5!
    • 1.Bd2?
      • threat
        • 2.Rb4#
      • 1...Sc3+
        • 2.Qxc3#
      • 1...Ba5
        • 2.Rc5#
      • 1...Bc5
        • 2.Rxc5#
      • 1...a5!
  • Keys
    • 1.Ba5!
      • threat
        • 2.Rb4#
      • 1...Sc3+
        • 2.Qxc3#
      • 1...Bxa5
        • 2.Rc5#
      • 1...Rd4
        • 2.Se5#
      • 1...Bd4
        • 2.Qe6#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Sed4
        • 2.Se5#
      • 1...Sfd4
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(g);P_PINS(D),SBLOCK::S(F)
    • B(j);SBLOCK::QAB(I)
    • B(j);N_GUARD::R1(G)
    • B(j);N_GUARD::R1(G),XB(j)
    • S(b);N_GUARD,P_PINS(F)::QAR1(I)
    • S(b);CHECK,N_GUARD,P_PINS(F)::QAR1(I),XS(b)
    • S(b);P_PINS(F),SBLOCK::S(D)
    • S(h);N_GUARD,S_CUTB(j)::S(F),XP(d)
  • Tries
    • Try
      • B(E);
      • Threat
        • R1(G)
      • Vars
        • S(b);CHECK,N_GUARD,P_PINS(F)::QAR1(I),XS(b)
        • B(j);N_GUARD::R1(G)
        • B(j);N_GUARD::R1(G),XB(j)
      • Refutation
        • P(k);
    • Try
      • B(E);
      • Threat
        • R1(G)
      • Vars
        • S(b);CHECK,N_GUARD,P_PINS(F)::QAR1(I),XS(b)
        • B(j);N_GUARD::R1(G)
        • B(j);N_GUARD::R1(G),XB(j)
      • Refutation
        • P(k);
  • Actual
    • B(E);
    • Threat
      • R1(G)
    • Vars
      • S(b);CHECK,N_GUARD,P_PINS(F)::QAR1(I),XS(b)
      • B(j);N_GUARD,XB(E)::R1(G)
      • R(g);P_PINS(D),SBLOCK::S(F)
      • B(j);SBLOCK::QAB(I)
      • B(j);N_GUARD::R1(G),XB(j)
      • S(b);P_PINS(F),SBLOCK::S(D)
      • S(h);N_GUARD,S_CUTB(j)::S(F),XP(d)
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