MESON Chess Problem Database

Problem Display
PID: 265517 (8/3p3K/1B1p4/1P1k4/4R2p/3BP2p/6nQ/8 w - - 0 1)

Tokar, Ivan Vasilovich

Die Schwalbe, 1972

8/3p3K/1B1p4/1P1k4/4R2p/3BP2p/6nQ/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qa2#
    • 1...Sf4
      • 2.Qa2#
  • Tries
    • 1.Kh6?
      • 1...Se1
        • 2.Qa2#
      • 1...Sf4
        • 2.Qa2#
      • 1...Sxe3!
    • 1.Kg7?
      • 1...Se1
        • 2.Qa2#
      • 1...Sf4
        • 2.Qa2#
      • 1...Sxe3!
    • 1.Kg8?
      • 1...Se1
        • 2.Qa2#
      • 1...Sf4
        • 2.Qa2#
      • 1...Sxe3!
    • 1.Kh8?
      • 1...Se1
        • 2.Qa2#
      • 1...Sf4
        • 2.Qa2#
      • 1...Sxe3!
    • 1.Bd4?
      • 1...Se1
        • 2.Qa2#
      • 1...Sf4
        • 2.Qa2#
      • 1...Sxe3!
    • 1.Ba7?
      • 1...Sf4
        • 2.Qa2#
      • 1...Se1
        • 2.Qa2#
      • 1...Sxe3!
    • 1.Bc7?
      • threat
        • 2.Qxd6#
      • 1...Kc5
        • 2.Qxd6#
      • 1...Sf4!
    • 1.Re6?
      • threat
        • 2.Rxd6#
        • 2.Qxd6#
      • 1...dxe6
        • 2.e4#
      • 1...Sf4
        • 2.Qa2#
      • 1...Kxe6!
    • 1.Qg1?
      • 1...Sxe3
        • 2.Qg8#
      • 1...Sf4
        • 2.Qg5#
      • 1...Se1
        • 2.Qg5#
        • 2.Qg8#
      • 1...h2!
    • 1.Qg3?
      • threat
        • 2.Qg5#
        • 2.Qg8#
      • 1...Sxe3
        • 2.Qg8#
      • 1...Sf4
        • 2.Qg5#
      • 1...hxg3!
    • 1.Qf4?
      • threat
        • 2.Bc4#
        • 2.Qg5#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Sxe3
        • 2.Qf7#
      • 1...Sxf4!
    • 1.Qh1?
      • 1...Sxe3
        • 2.Rxe3#
      • 1...Sf4
        • 2.Bc4#
      • 1...Se1
        • 2.Bc4#
      • 1...h2!
  • Keys
    • 1.Bb1!
      • 1...Sxe3
        • 2.Qd2#
      • 1...Se1
        • 2.Qa2#
      • 1...Sf4
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::QAB(A)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Vars
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);XP(C)
    • Try
      • K(G);P-FLIGHT
      • Vars
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);XP(C)
    • Try
      • K(G);S_FLIGHT
      • Vars
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);XP(C)
    • Try
      • K(G);P-FLIGHT
      • Vars
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);XP(C)
    • Try
      • B(F);
      • Vars
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);XP(C)
    • Try
      • B(F);
      • Vars
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);XP(C)
    • Try
      • B(F);
      • Threat
        • QAR1(A),XP(e)
      • Vars
        • K(d);P-FLIGHT::QAB1(A),XP(e)
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);SBLOCK,XR(D)::P(C)
        • S(a);OGATE::QAB(A)
      • Refutation
        • K(d);S_FLIGHT,XR(D)
    • Try
      • Q(A);
      • Vars
        • S(a);OGATE,XP(C)::QAB(A)
        • S(a);OGATE::QAR(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(C)::QAB(A)
        • S(a);::QAR(A)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(4)
      • Vars
        • S(a);XP(C)::QAB(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Vars
        • S(a);OGATE,XP(C)::QAB(A)+R(D),XS(a)
        • S(a);::B(B)
      • Refutation
        • P(b);
  • Actual
    • B(B);
    • Vars
      • S(a);OGATE,XP(C)::QAR(A)
      • S(a);OGATE::QAB(A)
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