MESON Chess Problem Database

Problem Display
PID: 167293 (3K4/4R3/2p2p2/3k1p2/Q1b1N3/5N2/1b6/8 w - - 0 1)

Salvioli, Carlo

Nuova Rivista degli Scacchi, 1875

3K4/4R3/2p2p2/3k1p2/Q1b1N3/5N2/1b6/8

#2

5 + 6

15148 Sadier Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qxa2#
    • 1...Bb3
      • 2.Qxb3#
    • 1...c5
      • 2.Qd7#
      • 2.Qa8#
  • Tries
    • 1.Kd7?
      • threat
        • 2.Qxc6#
      • 1...c5
        • 2.Qc6#
        • 2.Qa8#
      • 1...Bb5!
    • 1.Rd7+?
      • 1...Ke6
        • 2.Sc5#
        • 2.Qxc6#
        • 2.Qxc4#
      • 1...Kxe4!
    • 1.Qd1+?
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bd3!
    • 1.Qa5+?
      • 1...c5
        • 2.Qxc5#
        • 2.Qa8#
      • 1...Bb5!
  • Keys
    • 1.Re6!
      • threat
        • 2.Qxc6#
      • 1...Kxe6
        • 2.Qxc4#
      • 1...Bb5
        • 2.Rd6#
      • 1...c5
        • 2.Qc6#
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(b);OGATEB::QAB(B),XB(b)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAB1(B),XP(e)
      • Refutation
        • B(b);
    • Try
      • R(D);CHECK
      • Refutation
        • K(c);P_SPINB(b),S_FLIGHT,XS(C)
    • Try
      • Q(B);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR1(B),XB(a)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • Q(B);CHECK
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • R(D);
    • Threat
      • QAB1(B),XP(e)
    • Vars
      • K(c);S_FLIGHT,XR(D)::QAB(B),XB(b)
      • B(b);::R1(D)
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