MESON Chess Problem Database

Problem Display
PID: 227151 (3r4/5R1q/4p2p/r1Rp2p1/3Bk3/3pp1K1/bQ6/1B6 w - - 0 1)

Guida, Marco

StrateGems, 2020

3r4/5R1q/4p2p/r1Rp2p1/3Bk3/3pp1K1/bQ6/1B6

#2

6 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...g4
      • 2.Rf4#
  • Tries
    • 1.Bg7?
      • threat
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qg2#
      • 1...e2
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qxe2#
      • 1...Qf5
        • 2.Qd4#
      • 1...Ra4
        • 2.Qe5#
        • 2.Qg2#
      • 1...d4
        • 2.Qg2#
      • 1...e5
        • 2.Qxe5#
      • 1...Qxg7!
    • 1.Qe2?
      • threat
        • 2.Qxd3#
        • 2.Qg4#
        • 2.Qxe3#
      • 1...Qxf7
        • 2.Qxd3#
      • 1...Bxb1
        • 2.Qg4#
        • 2.Qxe3#
      • 1...Qf5
        • 2.Qxd3#
        • 2.Qxe3#
      • 1...Ra3
        • 2.Qg4#
        • 2.Qxe3#
      • 1...Bc4
        • 2.Qg4#
        • 2.Qxe3#
      • 1...g4
        • 2.Rf4#
        • 2.Qxd3#
        • 2.Qxg4#
        • 2.Qxe3#
      • 1...h5
        • 2.Qxd3#
        • 2.Qxe3#
      • 1...Kxd4!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Qe5#
      • 1...Kf5
        • 2.Bxd3#
      • 1...Qf5
        • 2.Qd4#
      • 1...d4
        • 2.Qg2#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(g);N_GUARD::R1(F)
  • Tries
    • Try
      • B(D);
      • Threat
        • DUALS(3)
      • Vars
        • Q(j);::QAR1(B)
        • P(f);::QAB(B)
        • P(h);::QAR1(B),XP(h)
      • Refutation
        • Q(j);XB(D)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • Q(j);XR(F)::QAB1(B),XP(b)
      • Refutation
        • K(d);N_SPINP(b),P-FLIGHT,XB(D)
  • Actual
    • B(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(d);S_FLIGHT::B(A),XP(b)
      • Q(j);SBLOCK::QAR1(B)
      • P(f);::QAB(B)
      • P(h);::QAR1(B),XP(h)
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