MESON Chess Problem Database

Problem Display
PID: 36942 (K5QB/1N6/2p2p2/p1p1k3/3RP3/1n1rR3/B3nPN1/7r w - - 0 1)

Swane, Jan Arnold Willem

Magasinet, 1953

K5QB/1N6/2p2p2/p1p1k3/3RP3/1n1rR3/B3nPN1/7r

#2

10 + 9

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Bxf6#
    • 1...Rxd4
      • 2.Qe8#
    • 1...Sexd4
      • 2.f4#
    • 1...Sbxd4
      • 2.Qb8#
    • 1...cxd4
      • 2.Qe8#
  • Tries
    • 1.Qe6+?
      • 1...Kxd4
        • 2.Bxf6#
      • 1...Kxe6!
    • 1.Qg5+?
      • 1...Ke6
        • 2.Qxf6#
      • 1...Kxd4!
    • 1.Qb8+?
      • 1...Ke6
        • 2.Qe8#
      • 1...Kxd4!
    • 1.Qd8?
      • threat
        • 2.Qxf6#
        • 2.Qd6#
      • 1...Ke6
        • 2.Qxf6#
        • 2.Qe8#
      • 1...Rxd4
        • 2.Qxf6#
        • 2.Qe7#
        • 2.Qe8#
      • 1...Rh6
        • 2.Qd6#
      • 1...Rxh8!
    • 1.f4+?
      • 1...Kxd4
        • 2.Bxf6#
      • 1...Sxf4!
  • Keys
    • 1.Sd8!
      • threat
        • 2.Sxc6#
      • 1...Kxd4
        • 2.Bxf6#
      • 1...Rxd4
        • 2.Qe6#
      • 1...Sexd4
        • 2.Qg3#
      • 1...Sbxd4
        • 2.Sf7#
      • 1...cxd4
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(g);S_FLIGHT,XR(E)::B(J),XP(i)
    • R(d);SBLOCK,XR(E)::QAR(I)
    • S(b);N_GUARD,SBLOCK,XR(E)::P(B)
    • S(c);SBLOCK,XR(E)::QAB(I)
    • P(f);SBLOCK,XR(E)::QAR(I)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);S_FLIGHT,XR(E)::B(J),XP(i)
      • Refutation
        • K(g);N_SPINP(i),P-FLIGHT,P_SPINS(c),XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);N_SPINP(i),P-FLIGHT,P_SPINS(c)::QAR1(I),XP(i)
      • Refutation
        • K(g);S_FLIGHT,XR(E)
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);N_SPINP(i),P-FLIGHT,P_SPINS(c)::QAR2(I)
      • Refutation
        • K(g);S_FLIGHT,XR(E)
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::QAB1(I)
      • Refutation
        • R(a);N_SPINP(i),P_PINQ(I),XB(J)
    • Try
      • P(B);CHECK
      • Vars
        • K(g);S_FLIGHT,XR(E)::B(J),XP(i)
      • Refutation
        • S(b);XP(B)
  • Actual
    • S(G);
    • Threat
      • S(G),XP(h)
    • Vars
      • K(g);S_FLIGHT,XR(E)::B(J),XP(i)
      • R(d);SBLOCK,XR(E)::QAR1(I)
      • S(b);N_GUARD,SBLOCK,XR(E)::QAB(I)
      • S(c);SBLOCK,XR(E)::S(G)
      • P(f);SBLOCK,XR(E)::QAR1(I)
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