MESON Chess Problem Database

Problem Display
PID: 67302 (6n1/8/2N5/P1k1P2Q/7K/N1P5/2b3B1/1r1r3n w - - 0 1)

Stocchi, Ottavio

9th HM., Arbejder-Skak, 1954/II

6n1/8/2N5/P1k1P2Q/7K/N1P5/2b3B1/1r1r3n

#2

8 + 6

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4+
      • 2.cxb4#
    • 1...Rd4+
      • 2.cxd4#
  • Tries
    • 1.Qe2?
      • threat
        • 2.Qc4#
      • 1...Rb4+
        • 2.cxb4#
      • 1...Rd4+
        • 2.cxd4#
      • 1...Bb3
        • 2.Qb5#
      • 1...Bd3
        • 2.Qe3#
      • 1...Rd3!
    • 1.Qg4?
      • threat
        • 2.Qc4#
      • 1...Rb4
        • 2.Qxb4#
        • 2.cxb4#
      • 1...Rd4
        • 2.Qxd4#
        • 2.cxd4#
      • 1...Bb3
        • 2.Qb4#
      • 1...Bd3
        • 2.Qd4#
      • 1...Be4!
    • 1.e6+?
      • 1...Kd6
        • 2.Qe5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Bf5!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qc4#
      • 1...Rb4+
        • 2.cxb4#
      • 1...Rd4+
        • 2.cxd4#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Bb3
        • 2.Qa7#
      • 1...Bd3
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,OGATE::P(C),XR(a)
    • R(b);CHECK,OGATE::P(C),XR(b)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • R(a);CHECK,OGATE::P(C),XR(a)
        • R(b);CHECK,OGATE::P(C),XR(b)
        • B(d);S_CUTR(a)::QAR1(G)
        • B(d);S_CUTR(b)::QAB(G)
      • Refutation
        • R(b);
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • B(d);S_CUTR(a)::QAB1(G)
        • B(d);S_CUTR(b)::QAB1(G)
      • Refutation
        • B(d);
    • Try
      • P(F);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(G)
        • R(b);N_GUARD,P_SPINR(b)::QAR1(G),XR(b)
      • Refutation
        • B(d);P_SPINB(d)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • R(a);CHECK,OGATE::P(C),XR(a)
      • R(b);CHECK,OGATE::P(C),XR(b)
      • R(b);N_GUARD::QAR1(G),XR(b)
      • B(d);S_CUTR(a)::QAB(G)
      • B(d);S_CUTR(b)::QAR1(G)
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