MESON Chess Problem Database

Problem Display
PID: 15188 (2b3Q1/6Bp/2P5/5k2/5b1K/1P2p3/B1R5/n4R2 w - - 0 1)

Rychkov, Vladimir Nikolaevich

1st Prize, Zvezda, 1980

2b3Q1/6Bp/2P5/5k2/5b1K/1P2p3/B1R5/n4R2

#2

8 + 6

4001 Izbrannie Shakmatny Zadachi Vladimira Rychkova 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Qxh7#
  • Tries
    • 1.Kh5?
      • threat
        • 2.Qd5#
      • 1...Be6
        • 2.Qxh7#
      • 1...Ke4!
    • 1.Rxf4+?
      • 1...Kg6
        • 2.Bf8#
        • 2.Rf6#
        • 2.Qf7#
      • 1...Kxf4!
    • 1.Rg2?
      • threat
        • 2.Qd5#
      • 1...Be6
        • 2.Qxh7#
      • 1...Ke4!
    • 1.Rc4?
      • threat
        • 2.Qf7#
      • 1...Be6
        • 2.Qxh7#
      • 1...Kg6!
    • 1.Rc5+?
      • 1...Ke4
        • 2.Qc4#
        • 2.Qd5#
      • 1...Kg6!
    • 1.b4?
      • threat
        • 2.Qxh7#
      • 1...Ke4
        • 2.Qd5#
      • 1...Kg6
        • 2.Qf7#
      • 1...h5
        • 2.Qh7#
      • 1...h6
        • 2.Qh7#
      • 1...Sb3!
  • Keys
    • 1.Bb1!
      • threat
        • 2.Rc5#
      • 1...Ke4
        • 2.Rc4#
      • 1...Kg6
        • 2.Rg2#
      • 1...Sxc2
        • 2.Bxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(f);SBLOCK::QAB(H),XP(e)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAR2(H)
      • Vars
        • B(f);SBLOCK::QAB(H),XP(e)
      • Refutation
        • K(d);N_SPINB(c),S_FLIGHT
    • Try
      • R(A);CHECK,XB(c)
      • Refutation
        • K(d);P-FLIGHT,XR(A)
    • Try
      • R(C);
      • Threat
        • QAR2(H)
      • Vars
        • B(f);SBLOCK::QAB(H),XP(e)
      • Refutation
        • K(d);N_SPINB(c),S_FLIGHT
    • Try
      • R(C);
      • Threat
        • QAR2(H)
      • Vars
        • B(f);SBLOCK::QAB(H),XP(e)
      • Refutation
        • K(d);N_SPINB(c),S_FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(d);N_SPINB(c),S_FLIGHT
    • Try
      • P(D);
      • Threat
        • QAB(H),XP(e)
      • Vars
        • K(d);N_SPINB(c),S_FLIGHT::QAB1(H)
        • P(e);::QAB(H)
      • Refutation
        • S(a);
  • Actual
    • B(B);
    • Threat
      • B(B)+R(C),DCHECK
    • Vars
      • K(d);N_SPINB(c),S_FLIGHT::B(B)+R(C),DCHECK
      • S(a);OGATE,P_SPINS(a),XR(C)::B(B),XS(a)
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