MESON Chess Problem Database

Problem Display
PID: 94621 (BR1r1b2/8/2PPp3/1n1kpn2/2pP3q/5P2/1N1Q4/K2N4 w - - 0 1)

Schneider, Vilmos

Magasinet, 1952

BR1r1b2/8/2PPp3/1n1kpn2/2pP3q/5P2/1N1Q4/K2N4

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Rxb5#
    • 1...Bxd6
      • 2.c7#
    • 1...Sbxd6
      • 2.Sc3#
    • 1...Sfxd6
      • 2.Se3#
  • Tries
    • 1.dxe5+?
      • 1...Kc5
        • 2.Sa4#
      • 1...Qd4
        • 2.Rxb5#
      • 1...Sbd4
        • 2.Rb5#
      • 1...Sfd4
        • 2.Rxb5#
      • 1...Kxe5!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qc5#
      • 1...Kxd4
        • 2.Qxc4#
      • 1...Qxd4
        • 2.c7#
      • 1...Bxd6
        • 2.Qxc4#
      • 1...Sbxd4
        • 2.Sc3#
      • 1...Sfxd4
        • 2.Se3#
      • 1...exd4
        • 2.Rxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(h);SBLOCK,XP(H)::R(J),XS(c)
    • B(i);SBLOCK,XP(H)::B(I)+P(G)
    • S(c);N_GUARD,SBLOCK,XP(H)::S(B)
    • S(f);N_GUARD,SBLOCK,XP(H)::S(B)
  • Tries
    • Try
      • P(F);CHECK,XP(e)
      • Vars
        • K(d);P-FLIGHT::S(C)
        • Q(b);P_PINS(C),P_SPINQ(b)::R(J),XS(c)
        • S(c);P_SPINS(c)::R(J)
        • S(f);P_SPINS(f)::R(J),XS(c)
      • Refutation
        • K(d);P-FLIGHT,XP(F)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(a),XP(F)::QAR1(D),XP(a)
      • Q(b);P_PINS(C),SBLOCK,XP(F)::B(I)+P(G)
      • B(i);SBLOCK,XP(H)::QAB1(D),XP(a)
      • S(c);N_GUARD,SBLOCK,XP(F)::S(B)
      • S(f);N_GUARD,SBLOCK,XP(F)::S(B)
      • P(e);SBLOCK,XP(F)::R(J),XS(c)
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