MESON Chess Problem Database

Problem Display
PID: 28740 (8/5p1K/5R1Q/8/1p4P1/1p1RN3/pNppkBBn/rbn3br w - - 0 1)

Stocchi, Ottavio

4th Prize, La Settimana Enigmistica, 1935/I

8/5p1K/5R1Q/8/1p4P1/1p1RN3/pNppkBBn/rbn3br

#2

9 + 13

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Bxf1#
    • 1...Sxg4
      • 2.Bf1#
  • Tries
    • 1.Sxc2?
      • threat
        • 2.Sd4#
        • 2.Rxd2#
        • 2.Re3#
        • 2.Qxd2#
        • 2.Qe3#
      • 1...Bxc2
        • 2.Qxd2#
        • 2.Qe3#
      • 1...Bxf2
        • 2.Rxd2#
        • 2.Qxd2#
      • 1...Sxd3
        • 2.Sd4#
        • 2.Qe3#
      • 1...Sxg4
        • 2.Sd4#
        • 2.Rxd2#
      • 1...bxc2
        • 2.Rxd2#
        • 2.Re3#
        • 2.Qxd2#
        • 2.Qe3#
      • 1...d1Q
        • 2.Sd4#
        • 2.Qe3#
      • 1...d1S
        • 2.Sd4#
        • 2.Rd2#
        • 2.Qd2#
      • 1...d1B
        • 2.Sd4#
        • 2.Rd2#
        • 2.Qd2#
        • 2.Qe3#
      • 1...d1R
        • 2.Sd4#
        • 2.Qe3#
      • 1...Sf1
        • 2.Sd4#
      • 1...Sf3!
    • 1.Bf3+?
      • 1...Kxf2
        • 2.Qh4#
      • 1...Sxf3!
  • Keys
    • 1.Sed1!
      • threat
        • 2.Rxd2#
        • 2.Re3#
        • 2.Qxd2#
        • 2.Qe3#
      • 1...Bxf2
        • 2.Qxd2#
      • 1...Sxd3
        • 2.Qe3#
      • 1...Sxg4
        • 2.Rxd2#
      • 1...cxd1Q
        • 2.Qe3#
      • 1...cxd1S
        • 2.Qxd2#
      • 1...cxd1B
        • 2.Qxd2#
        • 2.Qe3#
      • 1...cxd1R
        • 2.Qe3#
      • 1...Sf1
        • 2.Bf3#
      • 1...Sf3
        • 2.Re3#

There are these versions: 121687

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(j);N_GUARD,P_PINQ(H)::B(C),XS(j)
    • S(j);N_GUARD,P_PINQ(H),XP(F)::B(C)
  • Tries
    • Try
      • S(E);XP(g)
      • Threat
        • DUALS(5)
      • Vars
        • S(j);P_PINQ(H)::S(E)
      • Refutation
        • S(j);P_PINQ(H)
    • Try
      • B(C);CHECK
      • Vars
        • K(i);P-FLIGHT,XB(B)::QAB(H)
      • Refutation
        • S(j);P_PINQ(H),XB(C)
  • Actual
    • S(E);
    • Threat
      • DUALS(4)
    • Vars
      • B(d);XB(B)::QAR1(H),XP(h)
      • S(c);XR(D)::QAR1(H)
      • S(j);P_PINQ(H),XP(F)::R1(D),XP(h)
      • P(g);P_PINR(D),XS(E)::QAR1(H)
      • P(g);P_PINR(D),XS(E)::QAR1(H),XP(h)
      • S(j);N_GUARD,P_PINQ(H),SBLOCK::B(C)
      • S(j);P_PINQ(H)::R1(D)
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