MESON Chess Problem Database

Problem Display
PID: 189558 (4Qb2/1K2n3/3p4/3k4/P2P1pP1/1pR2P2/8/Bb6 w - - 0 1)

Gross, Izidor

Sahovska Abecada, 1911

4Qb2/1K2n3/3p4/3k4/P2P1pP1/1pR2P2/8/Bb6

#2

8 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Re3?
      • threat
        • 2.Qb5#
        • 2.Qf7#
      • 1...Kc4
        • 2.Qb5#
      • 1...fxe3
        • 2.Qf7#
      • 1...Be4
        • 2.Qf7#
      • 1...Bd3
        • 2.Qf7#
      • 1...Bf5
        • 2.Qb5#
      • 1...Bg6
        • 2.Qb5#
      • 1...Sc6
        • 2.Qxc6#
        • 2.Qf7#
        • 2.Qe6#
      • 1...b2!
    • 1.Rc5+?
      • 1...Ke6
        • 2.d5#
      • 1...dxc5!
    • 1.Qb5+?
      • 1...Kxd4
        • 2.Rxb3#
        • 2.Rd3#
      • 1...Ke6!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Qf7#
      • 1...Kc4
        • 2.Qb5#
      • 1...Ke6
        • 2.d5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);S_FLIGHT::QAB1(H)
        • P(c);XR(B)::QAB(H)
        • B(a);::QAB(H)
        • B(a);::QAR2(H)
      • Refutation
        • P(b);
    • Try
      • R(B);CHECK
      • Vars
        • K(d);OGATE,P_SPINS(f),S_FLIGHT::P(E)
      • Refutation
        • P(e);XR(B)
    • Try
      • Q(H);CHECK
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(B);
    • Threat
      • QAB(H)
    • Vars
      • K(d);S_FLIGHT::QAB1(H)
      • K(d);OGATE,P_SPINS(f),S_FLIGHT::P(E)
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