MESON Chess Problem Database

Problem Display
PID: 233795 (7b/K3p1B1/pR6/rbkpN3/1R3n2/pB2p3/4P3/1nN1Q3 w - - 0 1)

Schreiber, Kurt

Freie Presse, 1965

7b/K3p1B1/pR6/rbkpN3/1R3n2/pB2p3/4P3/1nN1Q3

#2

9 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Sd7#
      • 2.Rc6#
    • 1...Bd3
      • 2.Sd7#
      • 2.Rc6#
    • 1...Bc4
      • 2.Sd7#
    • 1...Bc6
      • 2.Rxc6#
    • 1...Bd7
      • 2.Sxd7#
    • 1...e6
      • 2.Bf8#
  • Tries
    • 1.Scd3+?
      • 1...Bxd3
        • 2.Sd7#
        • 2.Rc6#
      • 1...Sxd3!
    • 1.Rc4+?
      • 1...Bxc4
        • 2.Sd7#
      • 1...dxc4!
    • 1.R4xb5+?
      • 1...Kd4
        • 2.Qb4#
      • 1...Rxb5
        • 2.Sd7#
      • 1...axb5+!
    • 1.Qc3+?
      • 1...Bc4
        • 2.Sd7#
        • 2.Rc6#
      • 1...Sxc3!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qxe7#
      • 1...Kxb4
        • 2.Sed3#
      • 1...Bc4
        • 2.Sd7#
      • 1...Sg6
        • 2.Qd4#
      • 1...e6
        • 2.Bf8#
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(f);N_GUARD::S(F)
    • B(f);N_GUARD::R1(G),XB(f)
    • B(f);N_GUARD::S(F),XB(f)
    • P(j);OGATEB::B(I)
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • S(d);XS(A)
    • Try
      • R(E);CHECK
      • Vars
        • B(f);XR(E)::S(F)
      • Refutation
        • P(h);XR(E)
    • Try
      • R(E);CHECK,XB(f)
      • Vars
        • K(g);S_FLIGHT::QAR2(B)
        • R(e);XR(E)::S(F)
      • Refutation
        • P(i);CHECK,XR(E)
    • Try
      • Q(B);CHECK
      • Refutation
        • S(a);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B),XP(j)
    • Vars
      • K(g);P_SPINB(f),P_SPINS(d),S_FLIGHT,XR(E)::S(F)
      • B(f);N_GUARD::S(F)
      • S(d);OGATE::QAB1(B)
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