MESON Chess Problem Database

Problem Display
PID: 74200 (3b1rnQ/2p2p2/1pN1p3/3pN3/2r1k3/3p3B/3B1KP1/4n3 w - - 0 1)

Hoffmann, Fritz

Wochenpost, 1993

3b1rnQ/2p2p2/1pN1p3/3pN3/2r1k3/3p3B/3B1KP1/4n3

#2

7 + 12

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4+
      • 2.Qxh4#
    • 1...Bf6
      • 2.Qh7#
    • 1...Sf3
      • 2.gxf3#
    • 1...Se7
      • 2.Qh4#
    • 1...f6
      • 2.Qh4#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...Bh4+
        • 2.Qxh4#
      • 1...d4
        • 2.Qxd4#
        • 2.Qe5#
      • 1...Bf6
        • 2.Qh7#
      • 1...Sc2
        • 2.Qe5#
      • 1...Sf3
        • 2.gxf3#
      • 1...e5
        • 2.Qxe5#
      • 1...f6
        • 2.Qh4#
      • 1...Sf6!
    • 1.Sd7?
      • threat
        • 2.Qe5#
      • 1...Bh4+
        • 2.Qxh4#
      • 1...Bf6
        • 2.Qh7#
      • 1...Sf3
        • 2.gxf3#
      • 1...e5
        • 2.Qxe5#
      • 1...f6
        • 2.Qh4#
      • 1...Sf6!
    • 1.Sxf7?
      • threat
        • 2.Qe5#
        • 2.Qh7#
      • 1...Bh4+
        • 2.Qxh4#
      • 1...Rxc6
        • 2.Qe5#
      • 1...d4
        • 2.Qe5#
      • 1...Sf6
        • 2.Sg5#
      • 1...Bf6
        • 2.Qh7#
      • 1...Sf3
        • 2.Qh7#
        • 2.gxf3#
      • 1...Sh6
        • 2.Qe5#
      • 1...Se7
        • 2.Qe5#
        • 2.Qh4#
      • 1...e5
        • 2.Qxe5#
        • 2.Qh7#
      • 1...Rxf7+!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qe5#
      • 1...Bh4+
        • 2.Qxh4#
      • 1...Sxf3
        • 2.gxf3#
      • 1...Bf6
        • 2.Qh7#
      • 1...Sf6
        • 2.Sg5#
      • 1...e5
        • 2.Qxe5#
      • 1...f6
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(j);CHECK,N_GUARD::QAR(G),XB(j)
    • B(j);S_CUTP(i)::QAB(G)
    • S(a);OGATE::P(C),XS(a)
    • S(l);S_CUTB(j)::QAR(G)
    • P(i);S_CUTB(j)::QAR(G)
  • Tries
    • Try
      • S(E);XR(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(j);CHECK,N_GUARD::QAR(G),XB(j)
        • B(j);S_CUTP(i)::QAB(G)
        • S(a);::QAR1(G)
        • S(a);OGATE::P(C),XS(a)
        • P(g);::QAR1(G),XP(g)
        • P(i);S_CUTB(j)::QAR(G)
      • Refutation
        • S(l);
    • Try
      • S(E);
      • Threat
        • QAR1(G)
      • Vars
        • B(j);CHECK,N_GUARD::QAR(G),XB(j)
        • B(j);S_CUTP(i)::QAB(G)
        • S(a);OGATE::P(C),XS(a)
        • P(g);::QAR1(G),XP(g)
        • P(i);S_CUTB(j)::QAR(G)
      • Refutation
        • S(l);
    • Try
      • S(E);P_SPINS(E),XP(i)
      • Threat
        • DUALS(2)
      • Vars
        • B(j);CHECK,N_GUARD::QAR(G),XB(j)
        • R(c);XS(F)::QAR1(G)
        • P(e);::QAR1(G)
        • S(l);N_PINS(E)::S(E)
        • B(j);N_PINS(E)::QAB(G)
        • S(l);::QAR1(G)
      • Refutation
        • R(k);CHECK,XS(E)
  • Actual
    • S(E);
    • Threat
      • QAR1(G)
    • Vars
      • B(j);CHECK,N_GUARD::QAR(G),XB(j)
      • S(a);OGATE,XS(E)::P(C),XS(a)
      • B(j);S_CUTP(i)::QAB(G)
      • S(l);S_CUTB(j)::S(E)
      • P(g);::QAR1(G),XP(g)
      • P(i);S_CUTB(j)::QAR(G)
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