MESON Chess Problem Database

Problem Display
PID: 99562 (b7/N7/p1QP1n2/k1B2pP1/p1Bp1p2/3P2Pp/1P6/7K w - - 0 1)

Molnar, Arpad

Budapesti Sakkszovetseg TT, 1964

b7/N7/p1QP1n2/k1B2pP1/p1Bp1p2/3P2Pp/1P6/7K

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc6+
      • 2.Sxc6#
    • 1...Se4
      • 2.Qxa6#
      • 2.Qb6#
      • 2.Qc7#
    • 1...Sd5
      • 2.Qxa6#
    • 1...a3
      • 2.b4#
    • 1...f3
      • 2.Qxa6#
      • 2.Qb6#
      • 2.Qc7#
  • Tries
    • 1.Kg1?
      • threat
        • 2.Qxa6#
        • 2.Qb6#
        • 2.Qc7#
      • 1...Bxc6
        • 2.Sxc6#
      • 1...Bb7
        • 2.Qb6#
        • 2.Qc7#
      • 1...Sd5
        • 2.Qxa6#
      • 1...Sd7
        • 2.Qxa6#
      • 1...Se8
        • 2.Qxa6#
        • 2.Qb6#
      • 1...a3
        • 2.Qxa6#
        • 2.b4#
      • 1...h2+!
    • 1.Qxa8?
      • threat
        • 2.Sc6#
        • 2.Qd8#
      • 1...Sd5
        • 2.Sc6#
      • 1...Sd7
        • 2.Sc6#
      • 1...Se8
        • 2.Sc6#
      • 1...a3!
    • 1.b3?
      • threat
        • 2.b4#
      • 1...Bxc6+
        • 2.Sxc6#
      • 1...Sd5
        • 2.Qxa4#
        • 2.Qxa6#
      • 1...axb3!
  • Keys
    • 1.Bxd4!
      • threat
        • 2.Bc3#
      • 1...Bxc6+
        • 2.Sxc6#
      • 1...Kb4
        • 2.Bc3#
      • 1...Se4
        • 2.Qb6#
      • 1...Sd5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(i);CHECK,XQ(H)::S(J),XB(i)
    • S(h);N_PINQ(H)::QAR1(H),XP(g)
    • P(b);N_GUARD::P(B)
  • Tries
    • Try
      • K(A);N_SPINQ(H),P-FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • B(i);XQ(H)::S(J),XB(i)
        • S(h);::QAR1(H),XP(g)
      • Refutation
        • P(a);CHECK
    • Try
      • Q(H);N_SPINQ(H),XB(i)
      • Threat
        • DUALS(2)
      • Vars
        • S(h);::S(J)
      • Refutation
        • P(b);
    • Try
      • P(B);
      • Threat
        • P(B)
      • Vars
        • B(i);CHECK,XQ(H)::S(J),XB(i)
      • Refutation
        • P(b);XP(B)
  • Actual
    • B(F);XP(c)
    • Threat
      • B(F)
    • Vars
      • B(i);CHECK,XQ(H)::S(J),XB(i)
      • K(e);S_FLIGHT::B(F)
      • S(h);N_PINQ(H)::QAB1(H)
      • S(h);N_PINQ(H)::QAR2(H)
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