MESON Chess Problem Database

Problem Display
PID: 265401 (3Kn1B1/B7/1N1P3Q/3N4/1PPkbr1R/1p2Rp2/2Pnp3/b7 w - - 0 1)

Wennick, Einar

Die Schwalbe, 1972

3Kn1B1/B7/1N1P3Q/3N4/1PPkbr1R/1p2Rp2/2Pnp3/b7

#2

12 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Sxf4?
      • threat
        • 2.Sd7#
      • 1...Kxe3
        • 2.Sbd5#
      • 1...Sxc4
        • 2.Sxc4#
      • 1...Bd3
        • 2.Sxe2#
        • 2.Sa4#
      • 1...Bd5
        • 2.Sxe2#
        • 2.Se6#
      • 1...Ke5!
    • 1.Sa4+?
      • 1...Ke5
        • 2.Qxf4#
        • 2.Qe6#
      • 1...Kxc4!
    • 1.Sa8+?
      • 1...Ke5
        • 2.Qxf4#
        • 2.Qe6#
      • 1...Kxc4!
    • 1.Sc8+?
      • 1...Ke5
        • 2.Qxf4#
        • 2.Qe6#
      • 1...Kxc4!
    • 1.Rd3+?
      • 1...Ke5
        • 2.Qxf4#
        • 2.Qe6#
      • 1...Bxd3!
    • 1.c3+?
      • 1...Ke5
        • 2.Qxf4#
        • 2.Qe6#
      • 1...Bxc3!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sd7#
      • 1...Kxe3
        • 2.Sbd5#
      • 1...Ke5
        • 2.Sd7#
      • 1...Sxc4
        • 2.Sxc4#
      • 1...Rf5
        • 2.Sc6#
      • 1...Rf7
        • 2.Sc6#
      • 1...Bd3
        • 2.Sa4#
      • 1...Bd5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);XR(h)
      • Threat
        • B(J)+S(G)
      • Vars
        • K(f);N_GUARD,S_FLIGHT,XR(B)::B(J)+S(G),DCHECK
        • S(b);XP(D)::B(J)+S(G),XS(b)
      • Refutation
        • K(f);P_SPINB(g),S_FLIGHT
    • Try
      • S(G);CHECK
      • Refutation
        • K(f);P-FLIGHT,XP(D)
    • Try
      • S(G);CHECK
      • Refutation
        • K(f);P-FLIGHT,XP(D)
    • Try
      • S(G);CHECK
      • Refutation
        • K(f);P-FLIGHT,XP(D)
    • Try
      • R(B);CHECK
      • Refutation
        • B(g);P_SPINR(h),XR(B)
    • Try
      • P(A);CHECK
      • Refutation
        • B(a);XP(A)
  • Actual
    • S(F);
    • Threat
      • B(J)+S(G)
    • Vars
      • K(f);N_GUARD,P_SPINR(h),S_FLIGHT,XR(B)::B(J)+S(G),DCHECK
      • K(f);P_SPINB(g),S_FLIGHT::S(G)
      • S(b);XP(D)::B(J)+S(G),XS(b)
      • R(h);P_SPINB(g)::S(F)
      • B(g);P_SPINR(h)::B(J)+S(G)
      • B(g);N_GUARD,P_SPINR(h)::S(F)
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