MESON Chess Problem Database

Problem Display
PID: 121265 (8/1p2p3/1K2p3/3kb1R1/2p5/2p3P1/2PP4/3Q4 w - - 0 1)

Mikan, Ilja

Zemedelske noviny, 1962

8/1p2p3/1K2p3/3kb1R1/2p5/2p3P1/2PP4/3Q4

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qe2?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kd6!
    • 1.Qf3+?
      • 1...Kd4
        • 2.dxc3#
      • 1...Kd6!
    • 1.Qe1?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kd6!
  • Keys
    • 1.d4!
      • 1...Ke4
        • 2.Rxe5#
      • 1...Kd6
        • 2.dxe5#
      • 1...cxd4 ep
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XB(d)
      • Vars
        • K(c);N_SPINB(d),P-FLIGHT::QAB1(A),XB(d)
      • Refutation
        • K(c);N_SPINB(d),P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);N_SPINB(d),P-FLIGHT::P(C),XP(a)
      • Refutation
        • K(c);N_SPINB(d),P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XB(d)
      • Vars
        • K(c);N_SPINB(d),P-FLIGHT::QAB1(A),XB(d)
      • Refutation
        • K(c);N_SPINB(d),P-FLIGHT
  • Actual
    • P(C);
    • Vars
      • K(c);N_SPINB(d),S_FLIGHT::R1(E),XB(d)
      • K(c);N_SPINB(d),P-FLIGHT::QAR(A)+P(C)DCHECK,XB(d)
      • P(b);EP,OGATEB,P_SPINP(b),XP(C)::QAR2(A),XP(b)
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