MESON Chess Problem Database

Problem Display
PID: 108991 (B7/2Qp4/8/B1n1r3/PnkPP3/5N2/Prp5/1RRN1K2 w - - 0 1)

Molnar, Arpad

Molnar, Henrik

Voros Meteor, 1953

B7/2Qp4/8/B1n1r3/PnkPP3/5N2/Prp5/1RRN1K2

#2

12 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Se3#
    • 1...Sd5
      • 2.Sxb2#
    • 1...Sa6
      • 2.Sxb2#
    • 1...Sc6
      • 2.Sxb2#
  • Tries
    • 1.Rxc2+?
      • 1...Kd3
        • 2.Rc3#
      • 1...Sxc2
        • 2.Sxb2#
      • 1...Rxc2!
    • 1.Qxc5+?
      • 1...Kd3
        • 2.Qc3#
      • 1...Rxc5!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qb5#
      • 1...Kd3
        • 2.Qb5#
      • 1...Sxa2
        • 2.Sxb2#
      • 1...Sxa4
        • 2.Sxe5#
      • 1...Sxe4
        • 2.Sxe5#
      • 1...Sbd3
        • 2.Se3#
      • 1...Sd5
        • 2.Sxb2#
      • 1...Sba6
        • 2.Sxb2#
      • 1...Sc6
        • 2.Sxb2#
      • 1...Sb3
        • 2.Sxe5#
      • 1...Scd3
        • 2.Sd2#
      • 1...Sca6
        • 2.Sxe5#
      • 1...Se6
        • 2.Sxe5#
      • 1...Sb7
        • 2.Sxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(c);SBLOCK::S(C)
    • S(c);::S(C),XR(a)
    • S(c);N_SPINS(e)::S(C),XR(a)
  • Tries
    • Try
      • R(B);CHECK,XP(b)
      • Vars
        • K(d);N_SPINS(e),S_FLIGHT::R1(B)
        • S(c);XR(B)::S(C),XR(a)
      • Refutation
        • R(a);XR(B)
    • Try
      • Q(K);CHECK,XS(e)
      • Vars
        • K(d);N_SPINP(b),OGATE,S_FLIGHT::QAR1(K)
      • Refutation
        • R(f);XQ(K)
  • Actual
    • Q(K);N_PINS(e)
    • Threat
      • QAB1(K)
    • Vars
      • K(d);N_SPINP(b),S_FLIGHT::QAB(K)
      • S(c);XP(E)::S(C),XR(a)
      • S(e);XP(G)::S(F),XR(f)
      • S(e);XP(I)::S(F),XR(f)
      • S(c);SBLOCK::S(C)
      • S(c);::S(C),XR(a)
      • S(e);::S(F),XR(f)
      • S(e);SBLOCK::S(F)
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