MESON Chess Problem Database

Problem Display
PID: 18402 (4R3/4NKn1/2p2p2/8/2pk1p1B/Q1RN1Pp1/8/5nq1 w - - 0 1)

Dankiewicz, Jan

2nd Place, Szachy, 1955

4R3/4NKn1/2p2p2/8/2pk1p1B/Q1RN1Pp1/8/5nq1

#2

8 + 9

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Rd8#
    • 1...Se3
      • 2.Bxf6#
    • 1...cxd3
      • 2.Qc5#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sbxc6#
      • 1...Ke5
        • 2.Sbxc6#
      • 1...c5
        • 2.Sbc6#
        • 2.Sec6#
        • 2.Bxf6#
      • 1...Kc5!
    • 1.Sxf4?
      • threat
        • 2.Sxc6#
        • 2.Bxf6#
      • 1...Sxe8
        • 2.Sxc6#
      • 1...Qe3
        • 2.Sxc6#
      • 1...Sh5
        • 2.Sf5#
        • 2.Sxc6#
      • 1...c5
        • 2.Sc6#
        • 2.Bxf6#
      • 1...f5
        • 2.Sxc6#
        • 2.Bf6#
      • 1...Ke5!
    • 1.Sd5?
      • threat
        • 2.Qc5#
      • 1...Kxd5
        • 2.Rd8#
      • 1...cxd5
        • 2.Bxf6#
      • 1...c5
        • 2.Qxc5#
      • 1...Se6!
    • 1.Sf5+?
      • 1...Kd5
        • 2.Sxf4#
        • 2.Rd8#
        • 2.Qd6#
      • 1...Sxf5!
  • Keys
    • 1.Se5!
      • threat
        • 2.S5xc6#
      • 1...Kxe5
        • 2.Bxf6#
      • 1...fxe5
        • 2.Rd8#
      • 1...c5
        • 2.S5c6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(b);SBLOCK::R(H)
    • S(a);SBLOCK::B(E),XP(h)
    • P(d);XS(C)::QAB1(A)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C),XP(g)
      • Vars
        • K(e);S_FLIGHT::S(C),XP(g)
      • Refutation
        • K(e);P_SPINP(d),S_FLIGHT
    • Try
      • S(C);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(i);XR(H)::S(F),XP(g)
        • Q(b);::S(F),XP(g)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • S(F);
      • Threat
        • QAB1(A)
      • Vars
        • K(e);OGATEB,P-FLIGHT,XS(F)::R(H)
        • P(g);SBLOCK,XS(F)::B(E),XP(h)
        • P(g);::QAB1(A),XP(g)
      • Refutation
        • S(i);
    • Try
      • S(F);CHECK
      • Refutation
        • S(i);XS(F)
  • Actual
    • S(C);
    • Threat
      • S(C),XP(g)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(C)::B(E),XP(h)
      • P(h);SBLOCK,XS(C)::R(H)
      • P(g);::S(C)
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