MESON Chess Problem Database

Problem Display
PID: 103749 (8/1Kp1q3/2P2p2/1NNk2p1/1P4p1/1P2p1Qp/8/8 w - - 0 1)

Sandrucci, Paolo

Telescacco 92, 1998

8/1Kp1q3/2P2p2/1NNk2p1/1P4p1/1P2p1Qp/8/8

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf4?
      • threat
        • 2.Sc3#
        • 2.Qd4#
      • 1...Qxc5
        • 2.Sxc7#
        • 2.Qf5#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qe5
        • 2.Qc4#
      • 1...gxf4!
    • 1.Qg2+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Qe4
        • 2.Qxe4#
      • 1...hxg2!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Qe4
        • 2.Qxe4#
      • 1...gxf3!
  • Keys
    • 1.Qxg4!
      • threat
        • 2.Qd4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Qxc5
        • 2.Qf5#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qe5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • Q(h);N_GUARD::QAB1(B),XQ(h)
        • Q(h);SBLOCK::QAB1(B)
      • Refutation
        • P(e);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(B)
        • Q(h);N_GUARD,P_SPINQ(h)::QAB1(B),XQ(h)
      • Refutation
        • P(b);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(B)
        • Q(h);N_GUARD,P_SPINQ(h)::QAB1(B),XQ(h)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • Q(B);XP(c)
    • Threat
      • QAR1(B)
    • Vars
      • K(d);P-FLIGHT::QAR1(B)
      • Q(h);N_GUARD,XS(E)::QAR2(B)
      • Q(h);N_GUARD::QAB1(B),XQ(h)
      • Q(h);SBLOCK::QAB1(B)
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