MESON Chess Problem Database

Problem Display
PID: 104638 (K7/1R6/2R5/8/8/8/p1Q3qk/r6N w - - 0 1)

Velimirovic, Milan

Scacco!, 1979

K7/1R6/2R5/8/8/8/p1Q3qk/r6N

#2

5 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Rh6#
      • 2.Rh7#
  • Tries
    • 1.Rg6?
      • threat
        • 2.Qxg2#
      • 1...Kg1
        • 2.Qxg2#
      • 1...Kxh1
        • 2.Qxg2#
      • 1...Qxc2
        • 2.Rh7#
      • 1...Qd2
        • 2.Rh7#
      • 1...Qe2
        • 2.Rh7#
      • 1...Qf2
        • 2.Rh7#
      • 1...Rg1
        • 2.Rh6#
      • 1...Kh3!
  • Keys
    • 1.Rg7!
      • threat
        • 2.Qxg2#
      • 1...Kg1
        • 2.Qxg2#
      • 1...Kxh1
        • 2.Qxg2#
      • 1...Kh3
        • 2.Qh7#
      • 1...Qxc2
        • 2.Rh6#
      • 1...Qd2
        • 2.Rh6#
      • 1...Qe2
        • 2.Rh6#
      • 1...Qf2
        • 2.Rh6#
      • 1...Rg1
        • 2.Rh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);P_SPINR(D)
      • Threat
        • QAR1(B),XQ(c)
      • Vars
        • K(d);S_FLIGHT::QAR1(B),XQ(c)
        • K(d);N_SPINQ(c),P-FLIGHT,XS(A)::QAB1(B),XQ(c)
        • Q(c);N_PINR(D),N_SPINQ(c),XQ(B)::R(D)
        • Q(c);N_PINR(D)::R(D)
        • R(a);SBLOCK::R(C)
      • Refutation
        • K(d);N_SPINQ(c),P-FLIGHT
  • Actual
    • R(D);P_SPINR(C)
    • Threat
      • QAR1(B),XQ(c)
    • Vars
      • K(d);S_FLIGHT::QAR1(B),XQ(c)
      • K(d);N_SPINQ(c),P-FLIGHT,XS(A)::QAB1(B),XQ(c)
      • K(d);N_SPINQ(c),P-FLIGHT::QAR(B)
      • Q(c);N_PINR(C),N_SPINQ(c),XQ(B)::R(C)
      • Q(c);N_PINR(C)::R(C)
      • R(a);SBLOCK::R(D)
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