MESON Chess Problem Database

Problem Display
PID: 103117 (1K6/1p2p3/3kpB2/1RpP3Q/3P4/2nPn1p1/6q1/2r1r3 w - - 0 1)

Macs, Valdemar

Match: Latvia - Sverdlovsk, 1948

1K6/1p2p3/3kpB2/1RpP3Q/3P4/2nPn1p1/6q1/2r1r3

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Be5+?
      • 1...Kxd5
        • 2.Rxc5#
      • 1...Kd7!
    • 1.Bxe7+?
      • 1...Kd7
        • 2.Rxb7#
      • 1...Kxe7!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qd8#
      • 1...Kxd5
        • 2.Qd7#
      • 1...Qxd5
        • 2.Bxe7#
      • 1...Scxd5
        • 2.Be5#
      • 1...Sexd5
        • 2.dxc5#
      • 1...exd5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(h);P-FLIGHT,P_SPINP(g),XP(D)::R1(C),XP(g)
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • B(F);CHECK,XP(k)
      • Vars
        • K(h);P-FLIGHT::R(C),XP(j)
      • Refutation
        • K(h);S_FLIGHT,XB(F)
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • K(h);P-FLIGHT,P_SPINP(g),XP(D)::QAR2(E)
      • Q(c);SBLOCK,XP(D)::B(F),XP(k)
      • S(d);SBLOCK,XP(D)::B(F)
      • S(e);SBLOCK,XP(D)::P(B),XP(g)
      • P(i);SBLOCK,XP(D)::R(C)
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