MESON Chess Problem Database

Problem Display
PID: 106101 (3R4/7Q/8/8/n5n1/1p4N1/1p1PNp2/1B1kbR1K w - - 0 1)

Bakcsi, Gyorgy

Pedagogusok Lapja, 1978

3R4/7Q/8/8/n5n1/1p4N1/1p1PNp2/1B1kbR1K

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.dxc3#
    • 1...Se3
      • 2.dxe3#
  • Tries
    • 1.Sc3+?
      • 1...Kc1
        • 2.Sge2#
      • 1...Sxc3!
    • 1.Ba2?
      • threat
        • 2.Bxb3#
        • 2.Qb1#
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Bxb3#
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Sc3
        • 2.Bxb3#
        • 2.dxc3#
      • 1...Sc5
        • 2.Qb1#
      • 1...Se3
        • 2.Qb1#
        • 2.dxe3#
      • 1...bxa2!
    • 1.Qd3?
      • threat
        • 2.Qxb3#
      • 1...Sc3
        • 2.dxc3#
      • 1...Se3
        • 2.dxe3#
      • 1...Sc5!
    • 1.Qg8?
      • threat
        • 2.Qxb3#
      • 1...Se3
        • 2.dxe3#
      • 1...Sc5!
    • 1.Qf7?
      • threat
        • 2.Qxb3#
      • 1...Se3
        • 2.dxe3#
      • 1...Sc5!
  • Keys
    • 1.d4!
      • threat
        • 2.Qd3#
      • 1...Kd2
        • 2.Qd3#
      • 1...Sc5
        • 2.dxc5#
      • 1...Se5
        • 2.dxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(f);OGATE::R(H)+P(D),XS(f)
    • S(g);OGATE::R(H)+P(D),XS(g)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(a);P-FLIGHT::S(F)
      • Refutation
        • S(f);XS(E)
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAR2(G),XQ(c)
        • P(c);::QAR2(G),XB(c)
        • P(c);::QAR2(G),XR(c)
        • S(f);::QAR2(G)
      • Refutation
        • P(e);XB(A)
    • Try
      • Q(G);
      • Threat
        • QAB(G),XP(e)
      • Vars
        • S(f);OGATE::QAR(G)+P(D),XS(f)
        • S(g);OGATE::QAR(G)+P(D),XS(g)
      • Refutation
        • S(f);
    • Try
      • Q(G);
      • Threat
        • QAB(G),XP(e)
      • Vars
        • S(g);OGATE::R(H)+P(D),XS(g)
      • Refutation
        • S(f);
    • Try
      • Q(G);
      • Threat
        • QAB(G),XP(e)
      • Vars
        • S(g);OGATE::R(H)+P(D),XS(g)
      • Refutation
        • S(f);
  • Actual
    • P(D);
    • Threat
      • QAR2(G)
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT::QAR1(G)
      • S(f);OGATE::R(H)+P(D),XS(f)
      • S(g);OGATE::R(H)+P(D),XS(g)
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