MESON Chess Problem Database

Problem Display
PID: 172371 (8/8/8/8/4R3/2pk3p/8/R3K1Q1 w Q - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1997

8/8/8/8/4R3/2pk3p/8/R3K1Q1

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...c2
      • 2.Qe3#
      • 2.Qd4#
  • Tries
    • 1.Rc1?
      • threat
        • 2.Rd4#
        • 2.Qe3#
        • 2.Qd4#
      • 1...c2
        • 2.Qe3#
        • 2.Qd4#
      • 1...Kxe4!
    • 1.Ra2?
      • threat
        • 2.Rd4#
        • 2.Qe3#
        • 2.Qd4#
      • 1...c2
        • 2.Qe3#
        • 2.Qd4#
      • 1...Kxe4!
    • 1.Rb4?
      • 1...Kc2
        • 2.Qg6#
      • 1...c2
        • 2.Ra3#
        • 2.Qd4#
        • 2.Qg3#
      • 1...h2!
    • 1.Qf2?
      • threat
        • 2.Rd4#
        • 2.Qe2#
      • 1...c2
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qf3#
      • 1...Kxe4!
    • 1.Qh1?
      • threat
        • 2.0-0-0#
      • 1...c2
        • 2.Ra3#
        • 2.Qf3#
      • 1...Kc2!
    • 1.Qg2?
      • threat
        • 2.Rd1#
        • 2.Qe2#
        • 2.0-0-0#
      • 1...c2
        • 2.Ra3#
        • 2.Qf3#
      • 1...hxg2!
    • 1.Qg4?
      • threat
        • 2.Qe2#
        • 2.0-0-0#
      • 1...c2
        • 2.Ra3#
        • 2.Qf3#
      • 1...Kc2!
  • Keys
    • 1.Qg6!
      • threat
        • 2.0-0-0#
      • 1...Kc2
        • 2.Rb4#
      • 1...c2
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • DUALS(3)
      • Refutation
        • K(b);S_FLIGHT,XR(D)
    • Try
      • R(A);
      • Threat
        • DUALS(3)
      • Refutation
        • K(b);S_FLIGHT,XR(D)
    • Try
      • R(D);
      • Vars
        • K(b);S_FLIGHT::QAB(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);S_FLIGHT,XR(D)
    • Try
      • Q(C);
      • Threat
        • 0-0-0
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Refutation
        • P(c);XQ(C)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • 0-0-0
    • Vars
      • K(b);S_FLIGHT::QAB(C)+R(D)
      • P(a);OGATEB,SBLOCK::R(A)
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