MESON Chess Problem Database

Problem Display
PID: 19327 (7q/5r2/2NPp3/1P1k1p2/2p1nQ1R/B2N4/6R1/b4K1B w - - 0 1)

Tuxen, Harri Viggo

1st Prize, Magasinet, 1940

7q/5r2/2NPp3/1P1k1p2/2p1nQ1R/B2N4/6R1/b4K1B

#2

10 + 8

3098 FIDE Album (1914-1944) (I) 1971
2048 Tuxens skakopgaver (Leif C Schmidt) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Scb4#
    • 1...Bd4
      • 2.Scb4#
    • 1...Sd2+
      • 2.Rxd2#
    • 1...Sf2
      • 2.Scb4#
      • 2.Rxf2#
      • 2.Qxc4#
    • 1...Sc3
      • 2.Scb4#
      • 2.Qxc4#
    • 1...Sg3+
      • 2.Rxg3#
    • 1...Sc5
      • 2.Sdb4#
      • 2.Scb4#
    • 1...Sg5
      • 2.Scb4#
      • 2.Rxg5#
      • 2.Qxc4#
    • 1...Sxd6
      • 2.Scb4#
      • 2.Qxd6#
    • 1...Sf6
      • 2.Scb4#
      • 2.Qxc4#
  • Tries
    • 1.Qxf5+?
      • 1...Qe5
        • 2.Sf4#
      • 1...Be5
        • 2.Sf4#
      • 1...exf5
        • 2.Sf4#
      • 1...e5
        • 2.Sf4#
        • 2.Qxf7#
      • 1...Rxf5+!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Sf4#
      • 1...Sxd2+
        • 2.Rxd2#
      • 1...Sg3+
        • 2.Rxg3#
      • 1...Sxd6
        • 2.Scb4#
      • 1...cxd3
        • 2.Qa2#
      • 1...Sc5
        • 2.Sdb4#
      • 1...c3
        • 2.Qa2#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Sc3
        • 2.Sde5#
      • 1...Sg5
        • 2.Rxg5#
      • 1...Sf6
        • 2.Sb2#
      • 1...f4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 2
  • Sets
    • Q(h);SBLOCK::S(I)
    • B(a);SBLOCK::S(I)
    • S(c);CHECK,OGATEB::B(B)+R(C),XS(c)
  • Tries
    • Try
      • Q(F);CHECK,P_SPINQ(F),XP(e)
      • Vars
        • Q(h);P_SPINQ(h)::S(E)
        • B(a);P_SPINB(a)::S(E)
        • P(f);XQ(F)::S(E)
      • Refutation
        • R(g);CHECK,XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAR(F)+S(E),DCHECK
    • Vars
      • S(c);CHECK,OGATE,XQ(F)::B(B)+R(C),XS(c)
      • S(c);CHECK,OGATEB::B(B)+R(C),XS(c)
      • S(c);SBLOCK,XP(J)::S(I)
      • P(b);OGATEB,P_SPINP(b),XS(E)::QAB(F)
      • S(c);SBLOCK::QAR(F)+S(E),DCHECK
      • P(b);OGATEB::QAB(F)
      • S(c);OGATEB::B(B)+R(C),XS(c)
      • S(c);N_GUARD,S_CUTB(a)::QAR(F)+S(E)
      • S(c);N_GUARD,S_CUTQ(h)::QAR(F)+S(E)
      • P(e);::QAR(F)+S(E),DCHECK,XP(e)
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